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Finding the Fourth Proportional to 607,761.60, 912,463.20 and 355,300.80

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Solution

The fourth proportional to 607,761.60, 912,463.20 and 355,300.80 is: 533,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,761.60 : 912,463.20 = 355,300.80 : x
  2. Step 2: Convert to fraction form
    607,761.60/912,463.20 = 355,300.80/x
  3. Step 3: Cross multiply
    607,761.60x = 912,463.20 × 355,300.80
  4. Step 4: Simplify right side
    607,761.60x = 324,198,904,930.56
  5. Step 5: Solve for x
    x = 324,198,904,930.56/607,761.60
  6. Step 6: Final answer
    x = 533,431.04

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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.