Home / 642,456.22-886,565.67-370,535.50

Finding the Fourth Proportional to 642,456.22, 886,565.67 and 370,535.50

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Solution

The fourth proportional to 642,456.22, 886,565.67 and 370,535.50 is: 511,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,456.22 : 886,565.67 = 370,535.50 : x
  2. Step 2: Convert to fraction form
    642,456.22/886,565.67 = 370,535.50/x
  3. Step 3: Cross multiply
    642,456.22x = 886,565.67 × 370,535.50
  4. Step 4: Simplify right side
    642,456.22x = 328,504,053,816.29
  5. Step 5: Solve for x
    x = 328,504,053,816.29/642,456.22
  6. Step 6: Final answer
    x = 511,325.20

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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.