Home / 642,802.86-887,060.97-370,867.50

Finding the Fourth Proportional to 642,802.86, 887,060.97 and 370,867.50

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Solution

The fourth proportional to 642,802.86, 887,060.97 and 370,867.50 is: 511,793.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,802.86 : 887,060.97 = 370,867.50 : x
  2. Step 2: Convert to fraction form
    642,802.86/887,060.97 = 370,867.50/x
  3. Step 3: Cross multiply
    642,802.86x = 887,060.97 × 370,867.50
  4. Step 4: Simplify right side
    642,802.86x = 328,982,084,291.48
  5. Step 5: Solve for x
    x = 328,982,084,291.48/642,802.86
  6. Step 6: Final answer
    x = 511,793.12

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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.