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Finding the Fourth Proportional to 579,016.92, 798,851.92 and 349,487

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Solution

The fourth proportional to 579,016.92, 798,851.92 and 349,487 is: 482,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,016.92 : 798,851.92 = 349,487 : x
  2. Step 2: Convert to fraction form
    579,016.92/798,851.92 = 349,487/x
  3. Step 3: Cross multiply
    579,016.92x = 798,851.92 × 349,487
  4. Step 4: Simplify right side
    579,016.92x = 279,188,360,965.04
  5. Step 5: Solve for x
    x = 279,188,360,965.04/579,016.92
  6. Step 6: Final answer
    x = 482,176.52

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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.