Home / 765,815.08-1,056,807.28-479,493.04

Finding the Fourth Proportional to 765,815.08, 1,056,807.28 and 479,493.04

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Solution

The fourth proportional to 765,815.08, 1,056,807.28 and 479,493.04 is: 661,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,815.08 : 1,056,807.28 = 479,493.04 : x
  2. Step 2: Convert to fraction form
    765,815.08/1,056,807.28 = 479,493.04/x
  3. Step 3: Cross multiply
    765,815.08x = 1,056,807.28 × 479,493.04
  4. Step 4: Simplify right side
    765,815.08x = 506,731,735,381.33
  5. Step 5: Solve for x
    x = 506,731,735,381.33/765,815.08
  6. Step 6: Final answer
    x = 661,689.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.