Home / 668,003.28-921,882.60-396,232.08

Finding the Fourth Proportional to 668,003.28, 921,882.60 and 396,232.08

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Solution

The fourth proportional to 668,003.28, 921,882.60 and 396,232.08 is: 546,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,003.28 : 921,882.60 = 396,232.08 : x
  2. Step 2: Convert to fraction form
    668,003.28/921,882.60 = 396,232.08/x
  3. Step 3: Cross multiply
    668,003.28x = 921,882.60 × 396,232.08
  4. Step 4: Simplify right side
    668,003.28x = 365,279,460,113.81
  5. Step 5: Solve for x
    x = 365,279,460,113.81/668,003.28
  6. Step 6: Final answer
    x = 546,822.85

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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.