Home / 485,584.60-729,932.10-346,307.80

Finding the Fourth Proportional to 485,584.60, 729,932.10 and 346,307.80

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Solution

The fourth proportional to 485,584.60, 729,932.10 and 346,307.80 is: 520,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,584.60 : 729,932.10 = 346,307.80 : x
  2. Step 2: Convert to fraction form
    485,584.60/729,932.10 = 346,307.80/x
  3. Step 3: Cross multiply
    485,584.60x = 729,932.10 × 346,307.80
  4. Step 4: Simplify right side
    485,584.60x = 252,781,179,700.38
  5. Step 5: Solve for x
    x = 252,781,179,700.38/485,584.60
  6. Step 6: Final answer
    x = 520,570.83

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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.