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Finding the Fourth Proportional to 518,484.52, 777,723.12 and 144,507.52

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Solution

The fourth proportional to 518,484.52, 777,723.12 and 144,507.52 is: 216,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,484.52 : 777,723.12 = 144,507.52 : x
  2. Step 2: Convert to fraction form
    518,484.52/777,723.12 = 144,507.52/x
  3. Step 3: Cross multiply
    518,484.52x = 777,723.12 × 144,507.52
  4. Step 4: Simplify right side
    518,484.52x = 112,386,839,317.86
  5. Step 5: Solve for x
    x = 112,386,839,317.86/518,484.52
  6. Step 6: Final answer
    x = 216,760.26

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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.