Home / 728,688.30-1,092,704.40-329,123.40

Finding the Fourth Proportional to 728,688.30, 1,092,704.40 and 329,123.40

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Solution

The fourth proportional to 728,688.30, 1,092,704.40 and 329,123.40 is: 493,536.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,688.30 : 1,092,704.40 = 329,123.40 : x
  2. Step 2: Convert to fraction form
    728,688.30/1,092,704.40 = 329,123.40/x
  3. Step 3: Cross multiply
    728,688.30x = 1,092,704.40 × 329,123.40
  4. Step 4: Simplify right side
    728,688.30x = 359,634,587,322.96
  5. Step 5: Solve for x
    x = 359,634,587,322.96/728,688.30
  6. Step 6: Final answer
    x = 493,536.93

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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.