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Finding the Fourth Proportional to 500,555.88, 750,827.58 and 121,479.78

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Solution

The fourth proportional to 500,555.88, 750,827.58 and 121,479.78 is: 182,218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,555.88 : 750,827.58 = 121,479.78 : x
  2. Step 2: Convert to fraction form
    500,555.88/750,827.58 = 121,479.78/x
  3. Step 3: Cross multiply
    500,555.88x = 750,827.58 × 121,479.78
  4. Step 4: Simplify right side
    500,555.88x = 91,210,369,236.33
  5. Step 5: Solve for x
    x = 91,210,369,236.33/500,555.88
  6. Step 6: Final answer
    x = 182,218.16

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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.