Home / 747,506.82-1,121,260.22-427,434.16

Finding the Fourth Proportional to 747,506.82, 1,121,260.22 and 427,434.16

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Solution

The fourth proportional to 747,506.82, 1,121,260.22 and 427,434.16 is: 641,151.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,506.82 : 1,121,260.22 = 427,434.16 : x
  2. Step 2: Convert to fraction form
    747,506.82/1,121,260.22 = 427,434.16/x
  3. Step 3: Cross multiply
    747,506.82x = 1,121,260.22 × 427,434.16
  4. Step 4: Simplify right side
    747,506.82x = 479,264,920,277.12
  5. Step 5: Solve for x
    x = 479,264,920,277.12/747,506.82
  6. Step 6: Final answer
    x = 641,151.23

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.