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Finding the Fourth Proportional to 518,048.54, 776,875.98 and 247,899.38

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Solution

The fourth proportional to 518,048.54, 776,875.98 and 247,899.38 is: 371,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,048.54 : 776,875.98 = 247,899.38 : x
  2. Step 2: Convert to fraction form
    518,048.54/776,875.98 = 247,899.38/x
  3. Step 3: Cross multiply
    518,048.54x = 776,875.98 × 247,899.38
  4. Step 4: Simplify right side
    518,048.54x = 192,587,073,778.89
  5. Step 5: Solve for x
    x = 192,587,073,778.89/518,048.54
  6. Step 6: Final answer
    x = 371,754.88

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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.