Home / 787,515.10-1,182,147.45-433,221.10

Finding the Fourth Proportional to 787,515.10, 1,182,147.45 and 433,221.10

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Solution

The fourth proportional to 787,515.10, 1,182,147.45 and 433,221.10 is: 650,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,515.10 : 1,182,147.45 = 433,221.10 : x
  2. Step 2: Convert to fraction form
    787,515.10/1,182,147.45 = 433,221.10/x
  3. Step 3: Cross multiply
    787,515.10x = 1,182,147.45 × 433,221.10
  4. Step 4: Simplify right side
    787,515.10x = 512,131,218,651.20
  5. Step 5: Solve for x
    x = 512,131,218,651.20/787,515.10
  6. Step 6: Final answer
    x = 650,312.89

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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.