Home / 746,066.60-1,120,266.30-431,138.60

Finding the Fourth Proportional to 746,066.60, 1,120,266.30 and 431,138.60

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Solution

The fourth proportional to 746,066.60, 1,120,266.30 and 431,138.60 is: 647,381.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,066.60 : 1,120,266.30 = 431,138.60 : x
  2. Step 2: Convert to fraction form
    746,066.60/1,120,266.30 = 431,138.60/x
  3. Step 3: Cross multiply
    746,066.60x = 1,120,266.30 × 431,138.60
  4. Step 4: Simplify right side
    746,066.60x = 482,990,044,209.18
  5. Step 5: Solve for x
    x = 482,990,044,209.18/746,066.60
  6. Step 6: Final answer
    x = 647,381.94

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Double scale
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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.