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Finding the Fourth Proportional to 518,679.16, 778,149.94 and 144,701.88

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Solution

The fourth proportional to 518,679.16, 778,149.94 and 144,701.88 is: 217,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,679.16 : 778,149.94 = 144,701.88 : x
  2. Step 2: Convert to fraction form
    518,679.16/778,149.94 = 144,701.88/x
  3. Step 3: Cross multiply
    518,679.16x = 778,149.94 × 144,701.88
  4. Step 4: Simplify right side
    518,679.16x = 112,599,759,239.89
  5. Step 5: Solve for x
    x = 112,599,759,239.89/518,679.16
  6. Step 6: Final answer
    x = 217,089.42

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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.