Home / 858,721.80-1,294,255.12-740,209.18

Finding the Fourth Proportional to 858,721.80, 1,294,255.12 and 740,209.18

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Solution

The fourth proportional to 858,721.80, 1,294,255.12 and 740,209.18 is: 1,115,634.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,721.80 : 1,294,255.12 = 740,209.18 : x
  2. Step 2: Convert to fraction form
    858,721.80/1,294,255.12 = 740,209.18/x
  3. Step 3: Cross multiply
    858,721.80x = 1,294,255.12 × 740,209.18
  4. Step 4: Simplify right side
    858,721.80x = 958,019,521,086.00
  5. Step 5: Solve for x
    x = 958,019,521,086.00/858,721.80
  6. Step 6: Final answer
    x = 1,115,634.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.