Home / 521,926.86-720,260.42-304,264.76

Finding the Fourth Proportional to 521,926.86, 720,260.42 and 304,264.76

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Solution

The fourth proportional to 521,926.86, 720,260.42 and 304,264.76 is: 419,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,926.86 : 720,260.42 = 304,264.76 : x
  2. Step 2: Convert to fraction form
    521,926.86/720,260.42 = 304,264.76/x
  3. Step 3: Cross multiply
    521,926.86x = 720,260.42 × 304,264.76
  4. Step 4: Simplify right side
    521,926.86x = 219,149,863,828.80
  5. Step 5: Solve for x
    x = 219,149,863,828.80/521,926.86
  6. Step 6: Final answer
    x = 419,886.16

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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.