Home / 674,741.58-931,126.10-368,818.76

Finding the Fourth Proportional to 674,741.58, 931,126.10 and 368,818.76

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Solution

The fourth proportional to 674,741.58, 931,126.10 and 368,818.76 is: 508,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,741.58 : 931,126.10 = 368,818.76 : x
  2. Step 2: Convert to fraction form
    674,741.58/931,126.10 = 368,818.76/x
  3. Step 3: Cross multiply
    674,741.58x = 931,126.10 × 368,818.76
  4. Step 4: Simplify right side
    674,741.58x = 343,416,773,605.64
  5. Step 5: Solve for x
    x = 343,416,773,605.64/674,741.58
  6. Step 6: Final answer
    x = 508,960.44

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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.