Home / 768,061.86-1,059,326.44-492,446.04

Finding the Fourth Proportional to 768,061.86, 1,059,326.44 and 492,446.04

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Solution

The fourth proportional to 768,061.86, 1,059,326.44 and 492,446.04 is: 679,191.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,061.86 : 1,059,326.44 = 492,446.04 : x
  2. Step 2: Convert to fraction form
    768,061.86/1,059,326.44 = 492,446.04/x
  3. Step 3: Cross multiply
    768,061.86x = 1,059,326.44 × 492,446.04
  4. Step 4: Simplify right side
    768,061.86x = 521,661,111,981.97
  5. Step 5: Solve for x
    x = 521,661,111,981.97/768,061.86
  6. Step 6: Final answer
    x = 679,191.53

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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.