Home / 481,220.76-663,931.98-279,977.88

Finding the Fourth Proportional to 481,220.76, 663,931.98 and 279,977.88

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Solution

The fourth proportional to 481,220.76, 663,931.98 and 279,977.88 is: 386,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,220.76 : 663,931.98 = 279,977.88 : x
  2. Step 2: Convert to fraction form
    481,220.76/663,931.98 = 279,977.88/x
  3. Step 3: Cross multiply
    481,220.76x = 663,931.98 × 279,977.88
  4. Step 4: Simplify right side
    481,220.76x = 185,886,268,224.60
  5. Step 5: Solve for x
    x = 185,886,268,224.60/481,220.76
  6. Step 6: Final answer
    x = 386,280.65

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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.