Home / 420,966.52-580,945.20-251,299.12

Finding the Fourth Proportional to 420,966.52, 580,945.20 and 251,299.12

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Solution

The fourth proportional to 420,966.52, 580,945.20 and 251,299.12 is: 346,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,966.52 : 580,945.20 = 251,299.12 : x
  2. Step 2: Convert to fraction form
    420,966.52/580,945.20 = 251,299.12/x
  3. Step 3: Cross multiply
    420,966.52x = 580,945.20 × 251,299.12
  4. Step 4: Simplify right side
    420,966.52x = 145,991,017,528.22
  5. Step 5: Solve for x
    x = 145,991,017,528.22/420,966.52
  6. Step 6: Final answer
    x = 346,799.59

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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.