Home / 746,114.10-1,120,337.55-431,186.10

Finding the Fourth Proportional to 746,114.10, 1,120,337.55 and 431,186.10

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Solution

The fourth proportional to 746,114.10, 1,120,337.55 and 431,186.10 is: 647,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,114.10 : 1,120,337.55 = 431,186.10 : x
  2. Step 2: Convert to fraction form
    746,114.10/1,120,337.55 = 431,186.10/x
  3. Step 3: Cross multiply
    746,114.10x = 1,120,337.55 × 431,186.10
  4. Step 4: Simplify right side
    746,114.10x = 483,073,978,868.06
  5. Step 5: Solve for x
    x = 483,073,978,868.06/746,114.10
  6. Step 6: Final answer
    x = 647,453.22

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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.