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Finding the Fourth Proportional to 484,597.43, 668,696.16 and 280,713.85

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Solution

The fourth proportional to 484,597.43, 668,696.16 and 280,713.85 is: 387,357.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,597.43 : 668,696.16 = 280,713.85 : x
  2. Step 2: Convert to fraction form
    484,597.43/668,696.16 = 280,713.85/x
  3. Step 3: Cross multiply
    484,597.43x = 668,696.16 × 280,713.85
  4. Step 4: Simplify right side
    484,597.43x = 187,712,275,117.15
  5. Step 5: Solve for x
    x = 187,712,275,117.15/484,597.43
  6. Step 6: Final answer
    x = 387,357.14

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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.