Home / 742,780.11-1,114,330.09-230,434.86

Finding the Fourth Proportional to 742,780.11, 1,114,330.09 and 230,434.86

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Solution

The fourth proportional to 742,780.11, 1,114,330.09 and 230,434.86 is: 345,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,780.11 : 1,114,330.09 = 230,434.86 : x
  2. Step 2: Convert to fraction form
    742,780.11/1,114,330.09 = 230,434.86/x
  3. Step 3: Cross multiply
    742,780.11x = 1,114,330.09 × 230,434.86
  4. Step 4: Simplify right side
    742,780.11x = 256,780,498,282.94
  5. Step 5: Solve for x
    x = 256,780,498,282.94/742,780.11
  6. Step 6: Final answer
    x = 345,701.90

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Double scale
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1.5x scale

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.