Home / 1,442,123.10-2,162,528.55-768,031.38

Finding the Fourth Proportional to 1,442,123.10, 2,162,528.55 and 768,031.38

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Solution

The fourth proportional to 1,442,123.10, 2,162,528.55 and 768,031.38 is: 1,151,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,123.10 : 2,162,528.55 = 768,031.38 : x
  2. Step 2: Convert to fraction form
    1,442,123.10/2,162,528.55 = 768,031.38/x
  3. Step 3: Cross multiply
    1,442,123.10x = 2,162,528.55 × 768,031.38
  4. Step 4: Simplify right side
    1,442,123.10x = 1,660,889,786,545.90
  5. Step 5: Solve for x
    x = 1,660,889,786,545.90/1,442,123.10
  6. Step 6: Final answer
    x = 1,151,697.65

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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.