Home / 765,808.20-1,056,797.82-479,486.16

Finding the Fourth Proportional to 765,808.20, 1,056,797.82 and 479,486.16

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Solution

The fourth proportional to 765,808.20, 1,056,797.82 and 479,486.16 is: 661,679.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,808.20 : 1,056,797.82 = 479,486.16 : x
  2. Step 2: Convert to fraction form
    765,808.20/1,056,797.82 = 479,486.16/x
  3. Step 3: Cross multiply
    765,808.20x = 1,056,797.82 × 479,486.16
  4. Step 4: Simplify right side
    765,808.20x = 506,719,928,608.17
  5. Step 5: Solve for x
    x = 506,719,928,608.17/765,808.20
  6. Step 6: Final answer
    x = 661,679.95

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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.