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Finding the Fourth Proportional to 500,538.69, 750,801.78 and 121,462.65

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Solution

The fourth proportional to 500,538.69, 750,801.78 and 121,462.65 is: 182,192.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,538.69 : 750,801.78 = 121,462.65 : x
  2. Step 2: Convert to fraction form
    500,538.69/750,801.78 = 121,462.65/x
  3. Step 3: Cross multiply
    500,538.69x = 750,801.78 × 121,462.65
  4. Step 4: Simplify right side
    500,538.69x = 91,194,373,823.52
  5. Step 5: Solve for x
    x = 91,194,373,823.52/500,538.69
  6. Step 6: Final answer
    x = 182,192.46

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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.