Home / 485,461.00-669,787.51-281,470.97

Finding the Fourth Proportional to 485,461.00, 669,787.51 and 281,470.97

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Solution

The fourth proportional to 485,461.00, 669,787.51 and 281,470.97 is: 388,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,461.00 : 669,787.51 = 281,470.97 : x
  2. Step 2: Convert to fraction form
    485,461.00/669,787.51 = 281,470.97/x
  3. Step 3: Cross multiply
    485,461.00x = 669,787.51 × 281,470.97
  4. Step 4: Simplify right side
    485,461.00x = 188,525,736,080.97
  5. Step 5: Solve for x
    x = 188,525,736,080.97/485,461.00
  6. Step 6: Final answer
    x = 388,343.73

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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.