Home / 392,180.20-587,490.28-307,543.32

Finding the Fourth Proportional to 392,180.20, 587,490.28 and 307,543.32

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Solution

The fourth proportional to 392,180.20, 587,490.28 and 307,543.32 is: 460,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,180.20 : 587,490.28 = 307,543.32 : x
  2. Step 2: Convert to fraction form
    392,180.20/587,490.28 = 307,543.32/x
  3. Step 3: Cross multiply
    392,180.20x = 587,490.28 × 307,543.32
  4. Step 4: Simplify right side
    392,180.20x = 180,678,711,178.93
  5. Step 5: Solve for x
    x = 180,678,711,178.93/392,180.20
  6. Step 6: Final answer
    x = 460,703.30

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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.