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Finding the Fourth Proportional to 607,050.80, 911,159.40 and 307,869.20

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Solution

The fourth proportional to 607,050.80, 911,159.40 and 307,869.20 is: 462,099.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,050.80 : 911,159.40 = 307,869.20 : x
  2. Step 2: Convert to fraction form
    607,050.80/911,159.40 = 307,869.20/x
  3. Step 3: Cross multiply
    607,050.80x = 911,159.40 × 307,869.20
  4. Step 4: Simplify right side
    607,050.80x = 280,517,915,550.48
  5. Step 5: Solve for x
    x = 280,517,915,550.48/607,050.80
  6. Step 6: Final answer
    x = 462,099.57

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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.