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Finding the Fourth Proportional to 518,806.92, 777,977.10 and 502,477.32

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Solution

The fourth proportional to 518,806.92, 777,977.10 and 502,477.32 is: 753,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,806.92 : 777,977.10 = 502,477.32 : x
  2. Step 2: Convert to fraction form
    518,806.92/777,977.10 = 502,477.32/x
  3. Step 3: Cross multiply
    518,806.92x = 777,977.10 × 502,477.32
  4. Step 4: Simplify right side
    518,806.92x = 390,915,848,229.37
  5. Step 5: Solve for x
    x = 390,915,848,229.37/518,806.92
  6. Step 6: Final answer
    x = 753,490.04

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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.