Home / 558,873.32-769,537.28-421,252.20

Finding the Fourth Proportional to 558,873.32, 769,537.28 and 421,252.20

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Solution

The fourth proportional to 558,873.32, 769,537.28 and 421,252.20 is: 580,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,873.32 : 769,537.28 = 421,252.20 : x
  2. Step 2: Convert to fraction form
    558,873.32/769,537.28 = 421,252.20/x
  3. Step 3: Cross multiply
    558,873.32x = 769,537.28 × 421,252.20
  4. Step 4: Simplify right side
    558,873.32x = 324,169,272,182.02
  5. Step 5: Solve for x
    x = 324,169,272,182.02/558,873.32
  6. Step 6: Final answer
    x = 580,040.70

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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.