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Finding the Fourth Proportional to 521,205.52, 719,265 and 282,741.52

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Solution

The fourth proportional to 521,205.52, 719,265 and 282,741.52 is: 390,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,205.52 : 719,265 = 282,741.52 : x
  2. Step 2: Convert to fraction form
    521,205.52/719,265 = 282,741.52/x
  3. Step 3: Cross multiply
    521,205.52x = 719,265 × 282,741.52
  4. Step 4: Simplify right side
    521,205.52x = 203,366,079,382.80
  5. Step 5: Solve for x
    x = 203,366,079,382.80/521,205.52
  6. Step 6: Final answer
    x = 390,184.05

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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.