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Finding the Fourth Proportional to 607,260.71, 911,446.63 and 307,947.89

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Solution

The fourth proportional to 607,260.71, 911,446.63 and 307,947.89 is: 462,203.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,260.71 : 911,446.63 = 307,947.89 : x
  2. Step 2: Convert to fraction form
    607,260.71/911,446.63 = 307,947.89/x
  3. Step 3: Cross multiply
    607,260.71x = 911,446.63 × 307,947.89
  4. Step 4: Simplify right side
    607,260.71x = 280,678,068,064.86
  5. Step 5: Solve for x
    x = 280,678,068,064.86/607,260.71
  6. Step 6: Final answer
    x = 462,203.57

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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.