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Finding the Fourth Proportional to 484,902, 669,161.07 and 280,948.59

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Solution

The fourth proportional to 484,902, 669,161.07 and 280,948.59 is: 387,706.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,902 : 669,161.07 = 280,948.59 : x
  2. Step 2: Convert to fraction form
    484,902/669,161.07 = 280,948.59/x
  3. Step 3: Cross multiply
    484,902x = 669,161.07 × 280,948.59
  4. Step 4: Simplify right side
    484,902x = 187,999,859,099.39
  5. Step 5: Solve for x
    x = 187,999,859,099.39/484,902
  6. Step 6: Final answer
    x = 387,706.92

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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.