Home / 484,095.78-667,941.93-280,141.56

Finding the Fourth Proportional to 484,095.78, 667,941.93 and 280,141.56

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Solution

The fourth proportional to 484,095.78, 667,941.93 and 280,141.56 is: 386,531.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,095.78 : 667,941.93 = 280,141.56 : x
  2. Step 2: Convert to fraction form
    484,095.78/667,941.93 = 280,141.56/x
  3. Step 3: Cross multiply
    484,095.78x = 667,941.93 × 280,141.56
  4. Step 4: Simplify right side
    484,095.78x = 187,118,294,259.61
  5. Step 5: Solve for x
    x = 187,118,294,259.61/484,095.78
  6. Step 6: Final answer
    x = 386,531.55

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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.