Home / 749,302.32-1,034,131.66-491,396.16

Finding the Fourth Proportional to 749,302.32, 1,034,131.66 and 491,396.16

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Solution

The fourth proportional to 749,302.32, 1,034,131.66 and 491,396.16 is: 678,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,302.32 : 1,034,131.66 = 491,396.16 : x
  2. Step 2: Convert to fraction form
    749,302.32/1,034,131.66 = 491,396.16/x
  3. Step 3: Cross multiply
    749,302.32x = 1,034,131.66 × 491,396.16
  4. Step 4: Simplify right side
    749,302.32x = 508,168,326,658.43
  5. Step 5: Solve for x
    x = 508,168,326,658.43/749,302.32
  6. Step 6: Final answer
    x = 678,188.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.