Home / 486,725.18-729,096.28-397,087.34

Finding the Fourth Proportional to 486,725.18, 729,096.28 and 397,087.34

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Solution

The fourth proportional to 486,725.18, 729,096.28 and 397,087.34 is: 594,822.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,725.18 : 729,096.28 = 397,087.34 : x
  2. Step 2: Convert to fraction form
    486,725.18/729,096.28 = 397,087.34/x
  3. Step 3: Cross multiply
    486,725.18x = 729,096.28 × 397,087.34
  4. Step 4: Simplify right side
    486,725.18x = 289,514,897,790.90
  5. Step 5: Solve for x
    x = 289,514,897,790.90/486,725.18
  6. Step 6: Final answer
    x = 594,822.11

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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.