Home / 728,398.92-1,004,833.28-486,740.96

Finding the Fourth Proportional to 728,398.92, 1,004,833.28 and 486,740.96

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Solution

The fourth proportional to 728,398.92, 1,004,833.28 and 486,740.96 is: 671,463.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,398.92 : 1,004,833.28 = 486,740.96 : x
  2. Step 2: Convert to fraction form
    728,398.92/1,004,833.28 = 486,740.96/x
  3. Step 3: Cross multiply
    728,398.92x = 1,004,833.28 × 486,740.96
  4. Step 4: Simplify right side
    728,398.92x = 489,093,515,347.15
  5. Step 5: Solve for x
    x = 489,093,515,347.15/728,398.92
  6. Step 6: Final answer
    x = 671,463.81

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1.5x scale

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.