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Finding the Fourth Proportional to 576,085.95, 794,998.11 and 321,437.13

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Solution

The fourth proportional to 576,085.95, 794,998.11 and 321,437.13 is: 443,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,085.95 : 794,998.11 = 321,437.13 : x
  2. Step 2: Convert to fraction form
    576,085.95/794,998.11 = 321,437.13/x
  3. Step 3: Cross multiply
    576,085.95x = 794,998.11 × 321,437.13
  4. Step 4: Simplify right side
    576,085.95x = 255,541,910,833.82
  5. Step 5: Solve for x
    x = 255,541,910,833.82/576,085.95
  6. Step 6: Final answer
    x = 443,582.96

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1.5x scale

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.