Home / 814,062.55-1,221,152.13-215,017.74

Finding the Fourth Proportional to 814,062.55, 1,221,152.13 and 215,017.74

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Solution

The fourth proportional to 814,062.55, 1,221,152.13 and 215,017.74 is: 322,542.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,062.55 : 1,221,152.13 = 215,017.74 : x
  2. Step 2: Convert to fraction form
    814,062.55/1,221,152.13 = 215,017.74/x
  3. Step 3: Cross multiply
    814,062.55x = 1,221,152.13 × 215,017.74
  4. Step 4: Simplify right side
    814,062.55x = 262,569,371,188.79
  5. Step 5: Solve for x
    x = 262,569,371,188.79/814,062.55
  6. Step 6: Final answer
    x = 322,542.01

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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.