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Finding the Fourth Proportional to 979,532, 1,351,680 and 549,729.14

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Solution

The fourth proportional to 979,532, 1,351,680 and 549,729.14 is: 758,584.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,532 : 1,351,680 = 549,729.14 : x
  2. Step 2: Convert to fraction form
    979,532/1,351,680 = 549,729.14/x
  3. Step 3: Cross multiply
    979,532x = 1,351,680 × 549,729.14
  4. Step 4: Simplify right side
    979,532x = 743,057,883,955.20
  5. Step 5: Solve for x
    x = 743,057,883,955.20/979,532
  6. Step 6: Final answer
    x = 758,584.59

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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.