Home / 642,550.42-886,434.74-370,553.23

Finding the Fourth Proportional to 642,550.42, 886,434.74 and 370,553.23

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Solution

The fourth proportional to 642,550.42, 886,434.74 and 370,553.23 is: 511,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,550.42 : 886,434.74 = 370,553.23 : x
  2. Step 2: Convert to fraction form
    642,550.42/886,434.74 = 370,553.23/x
  3. Step 3: Cross multiply
    642,550.42x = 886,434.74 × 370,553.23
  4. Step 4: Simplify right side
    642,550.42x = 328,471,256,736.06
  5. Step 5: Solve for x
    x = 328,471,256,736.06/642,550.42
  6. Step 6: Final answer
    x = 511,199.19

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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.