Home / 1,452,123.38-2,178,289.12-387,159.86

Finding the Fourth Proportional to 1,452,123.38, 2,178,289.12 and 387,159.86

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Solution

The fourth proportional to 1,452,123.38, 2,178,289.12 and 387,159.86 is: 580,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452,123.38 : 2,178,289.12 = 387,159.86 : x
  2. Step 2: Convert to fraction form
    1,452,123.38/2,178,289.12 = 387,159.86/x
  3. Step 3: Cross multiply
    1,452,123.38x = 2,178,289.12 × 387,159.86
  4. Step 4: Simplify right side
    1,452,123.38x = 843,346,110,738.72
  5. Step 5: Solve for x
    x = 843,346,110,738.72/1,452,123.38
  6. Step 6: Final answer
    x = 580,767.53

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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.