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Finding the Fourth Proportional to 610,620.20, 915,780.96 and 477,169.48

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Solution

The fourth proportional to 610,620.20, 915,780.96 and 477,169.48 is: 715,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,620.20 : 915,780.96 = 477,169.48 : x
  2. Step 2: Convert to fraction form
    610,620.20/915,780.96 = 477,169.48/x
  3. Step 3: Cross multiply
    610,620.20x = 915,780.96 × 477,169.48
  4. Step 4: Simplify right side
    610,620.20x = 436,982,724,477.10
  5. Step 5: Solve for x
    x = 436,982,724,477.10/610,620.20
  6. Step 6: Final answer
    x = 715,637.52

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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.