Home / 640,922.18-884,449.42-350,523.82

Finding the Fourth Proportional to 640,922.18, 884,449.42 and 350,523.82

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Solution

The fourth proportional to 640,922.18, 884,449.42 and 350,523.82 is: 483,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,922.18 : 884,449.42 = 350,523.82 : x
  2. Step 2: Convert to fraction form
    640,922.18/884,449.42 = 350,523.82/x
  3. Step 3: Cross multiply
    640,922.18x = 884,449.42 × 350,523.82
  4. Step 4: Simplify right side
    640,922.18x = 310,020,589,295.18
  5. Step 5: Solve for x
    x = 310,020,589,295.18/640,922.18
  6. Step 6: Final answer
    x = 483,710.19

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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.