Home / 526,728.40-726,882.80-285,015.22

Finding the Fourth Proportional to 526,728.40, 726,882.80 and 285,015.22

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Solution

The fourth proportional to 526,728.40, 726,882.80 and 285,015.22 is: 393,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,728.40 : 726,882.80 = 285,015.22 : x
  2. Step 2: Convert to fraction form
    526,728.40/726,882.80 = 285,015.22/x
  3. Step 3: Cross multiply
    526,728.40x = 726,882.80 × 285,015.22
  4. Step 4: Simplify right side
    526,728.40x = 207,172,661,156.22
  5. Step 5: Solve for x
    x = 207,172,661,156.22/526,728.40
  6. Step 6: Final answer
    x = 393,319.71

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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.