Home / 858,255.68-1,287,384.60-297,290.12

Finding the Fourth Proportional to 858,255.68, 1,287,384.60 and 297,290.12

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Solution

The fourth proportional to 858,255.68, 1,287,384.60 and 297,290.12 is: 445,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,255.68 : 1,287,384.60 = 297,290.12 : x
  2. Step 2: Convert to fraction form
    858,255.68/1,287,384.60 = 297,290.12/x
  3. Step 3: Cross multiply
    858,255.68x = 1,287,384.60 × 297,290.12
  4. Step 4: Simplify right side
    858,255.68x = 382,726,722,220.15
  5. Step 5: Solve for x
    x = 382,726,722,220.15/858,255.68
  6. Step 6: Final answer
    x = 445,935.55

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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.