Home / 1,451,823.38-2,178,178.14-742,349.78

Finding the Fourth Proportional to 1,451,823.38, 2,178,178.14 and 742,349.78

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Solution

The fourth proportional to 1,451,823.38, 2,178,178.14 and 742,349.78 is: 1,113,751.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,823.38 : 2,178,178.14 = 742,349.78 : x
  2. Step 2: Convert to fraction form
    1,451,823.38/2,178,178.14 = 742,349.78/x
  3. Step 3: Cross multiply
    1,451,823.38x = 2,178,178.14 × 742,349.78
  4. Step 4: Simplify right side
    1,451,823.38x = 1,616,970,063,029.81
  5. Step 5: Solve for x
    x = 1,616,970,063,029.81/1,451,823.38
  6. Step 6: Final answer
    x = 1,113,751.22

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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.