Home / 1,149,215.47-1,723,224.59-428,964.86

Finding the Fourth Proportional to 1,149,215.47, 1,723,224.59 and 428,964.86

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Solution

The fourth proportional to 1,149,215.47, 1,723,224.59 and 428,964.86 is: 643,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,215.47 : 1,723,224.59 = 428,964.86 : x
  2. Step 2: Convert to fraction form
    1,149,215.47/1,723,224.59 = 428,964.86/x
  3. Step 3: Cross multiply
    1,149,215.47x = 1,723,224.59 × 428,964.86
  4. Step 4: Simplify right side
    1,149,215.47x = 739,202,798,769.76
  5. Step 5: Solve for x
    x = 739,202,798,769.76/1,149,215.47
  6. Step 6: Final answer
    x = 643,223.85

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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.