Home / 853,724.30-1,280,754.61-254,672.19

Finding the Fourth Proportional to 853,724.30, 1,280,754.61 and 254,672.19

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Solution

The fourth proportional to 853,724.30, 1,280,754.61 and 254,672.19 is: 382,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,724.30 : 1,280,754.61 = 254,672.19 : x
  2. Step 2: Convert to fraction form
    853,724.30/1,280,754.61 = 254,672.19/x
  3. Step 3: Cross multiply
    853,724.30x = 1,280,754.61 × 254,672.19
  4. Step 4: Simplify right side
    853,724.30x = 326,172,580,744.62
  5. Step 5: Solve for x
    x = 326,172,580,744.62/853,724.30
  6. Step 6: Final answer
    x = 382,058.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.