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Finding the Fourth Proportional to 488,125.20, 656,869.50 and 488,125.20

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Solution

The fourth proportional to 488,125.20, 656,869.50 and 488,125.20 is: 656,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,125.20 : 656,869.50 = 488,125.20 : x
  2. Step 2: Convert to fraction form
    488,125.20/656,869.50 = 488,125.20/x
  3. Step 3: Cross multiply
    488,125.20x = 656,869.50 × 488,125.20
  4. Step 4: Simplify right side
    488,125.20x = 320,634,556,061.40
  5. Step 5: Solve for x
    x = 320,634,556,061.40/488,125.20
  6. Step 6: Final answer
    x = 656,869.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.