Home / 1,247,436.65-1,721,452.55-724,195.81

Finding the Fourth Proportional to 1,247,436.65, 1,721,452.55 and 724,195.81

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Solution

The fourth proportional to 1,247,436.65, 1,721,452.55 and 724,195.81 is: 999,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,436.65 : 1,721,452.55 = 724,195.81 : x
  2. Step 2: Convert to fraction form
    1,247,436.65/1,721,452.55 = 724,195.81/x
  3. Step 3: Cross multiply
    1,247,436.65x = 1,721,452.55 × 724,195.81
  4. Step 4: Simplify right side
    1,247,436.65x = 1,246,668,711,595.57
  5. Step 5: Solve for x
    x = 1,246,668,711,595.57/1,247,436.65
  6. Step 6: Final answer
    x = 999,384.39

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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.