Home / 725,897.60-1,088,068.80-326,470.40

Finding the Fourth Proportional to 725,897.60, 1,088,068.80 and 326,470.40

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Solution

The fourth proportional to 725,897.60, 1,088,068.80 and 326,470.40 is: 489,355.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,897.60 : 1,088,068.80 = 326,470.40 : x
  2. Step 2: Convert to fraction form
    725,897.60/1,088,068.80 = 326,470.40/x
  3. Step 3: Cross multiply
    725,897.60x = 1,088,068.80 × 326,470.40
  4. Step 4: Simplify right side
    725,897.60x = 355,222,256,363.52
  5. Step 5: Solve for x
    x = 355,222,256,363.52/725,897.60
  6. Step 6: Final answer
    x = 489,355.88

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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.