Home / 825,820.61-1,238,854.04-293,296.91

Finding the Fourth Proportional to 825,820.61, 1,238,854.04 and 293,296.91

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Solution

The fourth proportional to 825,820.61, 1,238,854.04 and 293,296.91 is: 439,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,820.61 : 1,238,854.04 = 293,296.91 : x
  2. Step 2: Convert to fraction form
    825,820.61/1,238,854.04 = 293,296.91/x
  3. Step 3: Cross multiply
    825,820.61x = 1,238,854.04 × 293,296.91
  4. Step 4: Simplify right side
    825,820.61x = 363,352,060,406.53
  5. Step 5: Solve for x
    x = 363,352,060,406.53/825,820.61
  6. Step 6: Final answer
    x = 439,989.09

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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.