Home / 484,319.39-668,285.26-280,330.41

Finding the Fourth Proportional to 484,319.39, 668,285.26 and 280,330.41

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Solution

The fourth proportional to 484,319.39, 668,285.26 and 280,330.41 is: 386,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,319.39 : 668,285.26 = 280,330.41 : x
  2. Step 2: Convert to fraction form
    484,319.39/668,285.26 = 280,330.41/x
  3. Step 3: Cross multiply
    484,319.39x = 668,285.26 × 280,330.41
  4. Step 4: Simplify right side
    484,319.39x = 187,340,680,231.93
  5. Step 5: Solve for x
    x = 187,340,680,231.93/484,319.39
  6. Step 6: Final answer
    x = 386,812.26

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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.