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Finding the Fourth Proportional to 472,077.30, 708,411.20 and 191,594.55

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Solution

The fourth proportional to 472,077.30, 708,411.20 and 191,594.55 is: 287,511.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,077.30 : 708,411.20 = 191,594.55 : x
  2. Step 2: Convert to fraction form
    472,077.30/708,411.20 = 191,594.55/x
  3. Step 3: Cross multiply
    472,077.30x = 708,411.20 × 191,594.55
  4. Step 4: Simplify right side
    472,077.30x = 135,727,725,078.96
  5. Step 5: Solve for x
    x = 135,727,725,078.96/472,077.30
  6. Step 6: Final answer
    x = 287,511.65

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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.