Home / 1,298,502.72-1,791,817.20-725,463.36

Finding the Fourth Proportional to 1,298,502.72, 1,791,817.20 and 725,463.36

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Solution

The fourth proportional to 1,298,502.72, 1,791,817.20 and 725,463.36 is: 1,001,074.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,502.72 : 1,791,817.20 = 725,463.36 : x
  2. Step 2: Convert to fraction form
    1,298,502.72/1,791,817.20 = 725,463.36/x
  3. Step 3: Cross multiply
    1,298,502.72x = 1,791,817.20 × 725,463.36
  4. Step 4: Simplify right side
    1,298,502.72x = 1,299,897,726,417.79
  5. Step 5: Solve for x
    x = 1,299,897,726,417.79/1,298,502.72
  6. Step 6: Final answer
    x = 1,001,074.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.