Home / 746,627.10-1,121,107.05-431,699.10

Finding the Fourth Proportional to 746,627.10, 1,121,107.05 and 431,699.10

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Solution

The fourth proportional to 746,627.10, 1,121,107.05 and 431,699.10 is: 648,223.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,627.10 : 1,121,107.05 = 431,699.10 : x
  2. Step 2: Convert to fraction form
    746,627.10/1,121,107.05 = 431,699.10/x
  3. Step 3: Cross multiply
    746,627.10x = 1,121,107.05 × 431,699.10
  4. Step 4: Simplify right side
    746,627.10x = 483,980,904,488.66
  5. Step 5: Solve for x
    x = 483,980,904,488.66/746,627.10
  6. Step 6: Final answer
    x = 648,223.06

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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.