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Finding the Fourth Proportional to 435,061.60, 651,728.40 and 383,106.40

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Solution

The fourth proportional to 435,061.60, 651,728.40 and 383,106.40 is: 573,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,061.60 : 651,728.40 = 383,106.40 : x
  2. Step 2: Convert to fraction form
    435,061.60/651,728.40 = 383,106.40/x
  3. Step 3: Cross multiply
    435,061.60x = 651,728.40 × 383,106.40
  4. Step 4: Simplify right side
    435,061.60x = 249,681,321,101.76
  5. Step 5: Solve for x
    x = 249,681,321,101.76/435,061.60
  6. Step 6: Final answer
    x = 573,898.78

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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.