Home / 1,178,874.23-1,768,656.41-380,139.71

Finding the Fourth Proportional to 1,178,874.23, 1,768,656.41 and 380,139.71

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Solution

The fourth proportional to 1,178,874.23, 1,768,656.41 and 380,139.71 is: 570,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,874.23 : 1,768,656.41 = 380,139.71 : x
  2. Step 2: Convert to fraction form
    1,178,874.23/1,768,656.41 = 380,139.71/x
  3. Step 3: Cross multiply
    1,178,874.23x = 1,768,656.41 × 380,139.71
  4. Step 4: Simplify right side
    1,178,874.23x = 672,336,534,787.04
  5. Step 5: Solve for x
    x = 672,336,534,787.04/1,178,874.23
  6. Step 6: Final answer
    x = 570,320.83

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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.