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Finding the Fourth Proportional to 500,353.79, 750,523.98 and 121,277.78

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Solution

The fourth proportional to 500,353.79, 750,523.98 and 121,277.78 is: 181,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,353.79 : 750,523.98 = 121,277.78 : x
  2. Step 2: Convert to fraction form
    500,353.79/750,523.98 = 121,277.78/x
  3. Step 3: Cross multiply
    500,353.79x = 750,523.98 × 121,277.78
  4. Step 4: Simplify right side
    500,353.79x = 91,021,878,378.54
  5. Step 5: Solve for x
    x = 91,021,878,378.54/500,353.79
  6. Step 6: Final answer
    x = 181,915.04

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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.