Home / 382,427.28-527,720.76-212,646.96

Finding the Fourth Proportional to 382,427.28, 527,720.76 and 212,646.96

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Solution

The fourth proportional to 382,427.28, 527,720.76 and 212,646.96 is: 293,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,427.28 : 527,720.76 = 212,646.96 : x
  2. Step 2: Convert to fraction form
    382,427.28/527,720.76 = 212,646.96/x
  3. Step 3: Cross multiply
    382,427.28x = 527,720.76 × 212,646.96
  4. Step 4: Simplify right side
    382,427.28x = 112,218,215,342.89
  5. Step 5: Solve for x
    x = 112,218,215,342.89/382,427.28
  6. Step 6: Final answer
    x = 293,436.74

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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.