Home / 1,298,335.92-1,791,670.50-725,380.38

Finding the Fourth Proportional to 1,298,335.92, 1,791,670.50 and 725,380.38

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Solution

The fourth proportional to 1,298,335.92, 1,791,670.50 and 725,380.38 is: 1,001,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,335.92 : 1,791,670.50 = 725,380.38 : x
  2. Step 2: Convert to fraction form
    1,298,335.92/1,791,670.50 = 725,380.38/x
  3. Step 3: Cross multiply
    1,298,335.92x = 1,791,670.50 × 725,380.38
  4. Step 4: Simplify right side
    1,298,335.92x = 1,299,642,628,124.79
  5. Step 5: Solve for x
    x = 1,299,642,628,124.79/1,298,335.92
  6. Step 6: Final answer
    x = 1,001,006.45

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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.