Home / 379,585.28-523,809.57-207,512.12

Finding the Fourth Proportional to 379,585.28, 523,809.57 and 207,512.12

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Solution

The fourth proportional to 379,585.28, 523,809.57 and 207,512.12 is: 286,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,585.28 : 523,809.57 = 207,512.12 : x
  2. Step 2: Convert to fraction form
    379,585.28/523,809.57 = 207,512.12/x
  3. Step 3: Cross multiply
    379,585.28x = 523,809.57 × 207,512.12
  4. Step 4: Simplify right side
    379,585.28x = 108,696,831,727.94
  5. Step 5: Solve for x
    x = 108,696,831,727.94/379,585.28
  6. Step 6: Final answer
    x = 286,356.82

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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.