Home / 1,979,113.56-2,729,488.88-1,521,337.20

Finding the Fourth Proportional to 1,979,113.56, 2,729,488.88 and 1,521,337.20

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Solution

The fourth proportional to 1,979,113.56, 2,729,488.88 and 1,521,337.20 is: 2,098,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,113.56 : 2,729,488.88 = 1,521,337.20 : x
  2. Step 2: Convert to fraction form
    1,979,113.56/2,729,488.88 = 1,521,337.20/x
  3. Step 3: Cross multiply
    1,979,113.56x = 2,729,488.88 × 1,521,337.20
  4. Step 4: Simplify right side
    1,979,113.56x = 4,152,472,970,130.34
  5. Step 5: Solve for x
    x = 4,152,472,970,130.34/1,979,113.56
  6. Step 6: Final answer
    x = 2,098,147.91

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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.