Home / 987,321.20-1,480,981.80-827,888.90

Finding the Fourth Proportional to 987,321.20, 1,480,981.80 and 827,888.90

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Solution

The fourth proportional to 987,321.20, 1,480,981.80 and 827,888.90 is: 1,241,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,321.20 : 1,480,981.80 = 827,888.90 : x
  2. Step 2: Convert to fraction form
    987,321.20/1,480,981.80 = 827,888.90/x
  3. Step 3: Cross multiply
    987,321.20x = 1,480,981.80 × 827,888.90
  4. Step 4: Simplify right side
    987,321.20x = 1,226,088,393,322.02
  5. Step 5: Solve for x
    x = 1,226,088,393,322.02/987,321.20
  6. Step 6: Final answer
    x = 1,241,833.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.