Home / 725,487.03-1,088,254.80-326,128.95

Finding the Fourth Proportional to 725,487.03, 1,088,254.80 and 326,128.95

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Solution

The fourth proportional to 725,487.03, 1,088,254.80 and 326,128.95 is: 489,204.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,487.03 : 1,088,254.80 = 326,128.95 : x
  2. Step 2: Convert to fraction form
    725,487.03/1,088,254.80 = 326,128.95/x
  3. Step 3: Cross multiply
    725,487.03x = 1,088,254.80 × 326,128.95
  4. Step 4: Simplify right side
    725,487.03x = 354,911,395,256.46
  5. Step 5: Solve for x
    x = 354,911,395,256.46/725,487.03
  6. Step 6: Final answer
    x = 489,204.33

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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.