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Finding the Fourth Proportional to 518,612.80, 776,882.40 and 296,737.60

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Solution

The fourth proportional to 518,612.80, 776,882.40 and 296,737.60 is: 444,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,612.80 : 776,882.40 = 296,737.60 : x
  2. Step 2: Convert to fraction form
    518,612.80/776,882.40 = 296,737.60/x
  3. Step 3: Cross multiply
    518,612.80x = 776,882.40 × 296,737.60
  4. Step 4: Simplify right side
    518,612.80x = 230,530,218,858.24
  5. Step 5: Solve for x
    x = 230,530,218,858.24/518,612.80
  6. Step 6: Final answer
    x = 444,513.17

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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.