Home / 864,849.80-1,296,839.20-288,268.88

Finding the Fourth Proportional to 864,849.80, 1,296,839.20 and 288,268.88

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Solution

The fourth proportional to 864,849.80, 1,296,839.20 and 288,268.88 is: 432,258.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,849.80 : 1,296,839.20 = 288,268.88 : x
  2. Step 2: Convert to fraction form
    864,849.80/1,296,839.20 = 288,268.88/x
  3. Step 3: Cross multiply
    864,849.80x = 1,296,839.20 × 288,268.88
  4. Step 4: Simplify right side
    864,849.80x = 373,838,383,724.10
  5. Step 5: Solve for x
    x = 373,838,383,724.10/864,849.80
  6. Step 6: Final answer
    x = 432,258.16

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1.5x scale

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.