Home / 805,008.80-1,207,513.20-724,829.60

Finding the Fourth Proportional to 805,008.80, 1,207,513.20 and 724,829.60

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Solution

The fourth proportional to 805,008.80, 1,207,513.20 and 724,829.60 is: 1,087,244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,008.80 : 1,207,513.20 = 724,829.60 : x
  2. Step 2: Convert to fraction form
    805,008.80/1,207,513.20 = 724,829.60/x
  3. Step 3: Cross multiply
    805,008.80x = 1,207,513.20 × 724,829.60
  4. Step 4: Simplify right side
    805,008.80x = 875,241,309,750.72
  5. Step 5: Solve for x
    x = 875,241,309,750.72/805,008.80
  6. Step 6: Final answer
    x = 1,087,244.40

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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.