Home / 1,986,552.35-2,979,828.53-724,421.15

Finding the Fourth Proportional to 1,986,552.35, 2,979,828.53 and 724,421.15

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Solution

The fourth proportional to 1,986,552.35, 2,979,828.53 and 724,421.15 is: 1,086,631.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,552.35 : 2,979,828.53 = 724,421.15 : x
  2. Step 2: Convert to fraction form
    1,986,552.35/2,979,828.53 = 724,421.15/x
  3. Step 3: Cross multiply
    1,986,552.35x = 2,979,828.53 × 724,421.15
  4. Step 4: Simplify right side
    1,986,552.35x = 2,158,650,806,883.30
  5. Step 5: Solve for x
    x = 2,158,650,806,883.30/1,986,552.35
  6. Step 6: Final answer
    x = 1,086,631.73

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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.