Home / 996,720.80-1,374,996.48-724,366.40

Finding the Fourth Proportional to 996,720.80, 1,374,996.48 and 724,366.40

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Solution

The fourth proportional to 996,720.80, 1,374,996.48 and 724,366.40 is: 999,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,720.80 : 1,374,996.48 = 724,366.40 : x
  2. Step 2: Convert to fraction form
    996,720.80/1,374,996.48 = 724,366.40/x
  3. Step 3: Cross multiply
    996,720.80x = 1,374,996.48 × 724,366.40
  4. Step 4: Simplify right side
    996,720.80x = 996,001,250,230.27
  5. Step 5: Solve for x
    x = 996,001,250,230.27/996,720.80
  6. Step 6: Final answer
    x = 999,278.08

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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.