Home / 510,154.20-764,729.10-285,622.20

Finding the Fourth Proportional to 510,154.20, 764,729.10 and 285,622.20

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Solution

The fourth proportional to 510,154.20, 764,729.10 and 285,622.20 is: 428,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,154.20 : 764,729.10 = 285,622.20 : x
  2. Step 2: Convert to fraction form
    510,154.20/764,729.10 = 285,622.20/x
  3. Step 3: Cross multiply
    510,154.20x = 764,729.10 × 285,622.20
  4. Step 4: Simplify right side
    510,154.20x = 218,423,607,946.02
  5. Step 5: Solve for x
    x = 218,423,607,946.02/510,154.20
  6. Step 6: Final answer
    x = 428,152.13

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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.