Home / 502,145.04-753,216.48-315,287.76

Finding the Fourth Proportional to 502,145.04, 753,216.48 and 315,287.76

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Solution

The fourth proportional to 502,145.04, 753,216.48 and 315,287.76 is: 472,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,145.04 : 753,216.48 = 315,287.76 : x
  2. Step 2: Convert to fraction form
    502,145.04/753,216.48 = 315,287.76/x
  3. Step 3: Cross multiply
    502,145.04x = 753,216.48 × 315,287.76
  4. Step 4: Simplify right side
    502,145.04x = 237,479,936,774.29
  5. Step 5: Solve for x
    x = 237,479,936,774.29/502,145.04
  6. Step 6: Final answer
    x = 472,930.96

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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.