Home / 457,730.10-686,595.15-432,069.30

Finding the Fourth Proportional to 457,730.10, 686,595.15 and 432,069.30

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Solution

The fourth proportional to 457,730.10, 686,595.15 and 432,069.30 is: 648,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,730.10 : 686,595.15 = 432,069.30 : x
  2. Step 2: Convert to fraction form
    457,730.10/686,595.15 = 432,069.30/x
  3. Step 3: Cross multiply
    457,730.10x = 686,595.15 × 432,069.30
  4. Step 4: Simplify right side
    457,730.10x = 296,656,685,843.90
  5. Step 5: Solve for x
    x = 296,656,685,843.90/457,730.10
  6. Step 6: Final answer
    x = 648,103.95

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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.