Home / 773,051.65-1,066,812.53-428,876.78

Finding the Fourth Proportional to 773,051.65, 1,066,812.53 and 428,876.78

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Solution

The fourth proportional to 773,051.65, 1,066,812.53 and 428,876.78 is: 591,850.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,051.65 : 1,066,812.53 = 428,876.78 : x
  2. Step 2: Convert to fraction form
    773,051.65/1,066,812.53 = 428,876.78/x
  3. Step 3: Cross multiply
    773,051.65x = 1,066,812.53 × 428,876.78
  4. Step 4: Simplify right side
    773,051.65x = 457,531,115,251.61
  5. Step 5: Solve for x
    x = 457,531,115,251.61/773,051.65
  6. Step 6: Final answer
    x = 591,850.64

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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.