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Finding the Fourth Proportional to 556,273.42, 767,755.65 and 326,830.65

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Solution

The fourth proportional to 556,273.42, 767,755.65 and 326,830.65 is: 451,084.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,273.42 : 767,755.65 = 326,830.65 : x
  2. Step 2: Convert to fraction form
    556,273.42/767,755.65 = 326,830.65/x
  3. Step 3: Cross multiply
    556,273.42x = 767,755.65 × 326,830.65
  4. Step 4: Simplify right side
    556,273.42x = 250,926,074,638.78
  5. Step 5: Solve for x
    x = 250,926,074,638.78/556,273.42
  6. Step 6: Final answer
    x = 451,084.06

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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.