Home / 724,985.80-1,085,328.30-538,822.60

Finding the Fourth Proportional to 724,985.80, 1,085,328.30 and 538,822.60

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Solution

The fourth proportional to 724,985.80, 1,085,328.30 and 538,822.60 is: 806,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,985.80 : 1,085,328.30 = 538,822.60 : x
  2. Step 2: Convert to fraction form
    724,985.80/1,085,328.30 = 538,822.60/x
  3. Step 3: Cross multiply
    724,985.80x = 1,085,328.30 × 538,822.60
  4. Step 4: Simplify right side
    724,985.80x = 584,799,416,459.58
  5. Step 5: Solve for x
    x = 584,799,416,459.58/724,985.80
  6. Step 6: Final answer
    x = 806,635.68

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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.