Home / 522,478.38-721,028.40-293,086.66

Finding the Fourth Proportional to 522,478.38, 721,028.40 and 293,086.66

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Solution

The fourth proportional to 522,478.38, 721,028.40 and 293,086.66 is: 404,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,478.38 : 721,028.40 = 293,086.66 : x
  2. Step 2: Convert to fraction form
    522,478.38/721,028.40 = 293,086.66/x
  3. Step 3: Cross multiply
    522,478.38x = 721,028.40 × 293,086.66
  4. Step 4: Simplify right side
    522,478.38x = 211,323,805,521.14
  5. Step 5: Solve for x
    x = 211,323,805,521.14/522,478.38
  6. Step 6: Final answer
    x = 404,464.21

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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.