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Finding the Fourth Proportional to 602,870.47, 830,814.41 and 591,791.21

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Solution

The fourth proportional to 602,870.47, 830,814.41 and 591,791.21 is: 815,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,870.47 : 830,814.41 = 591,791.21 : x
  2. Step 2: Convert to fraction form
    602,870.47/830,814.41 = 591,791.21/x
  3. Step 3: Cross multiply
    602,870.47x = 830,814.41 × 591,791.21
  4. Step 4: Simplify right side
    602,870.47x = 491,668,665,420.30
  5. Step 5: Solve for x
    x = 491,668,665,420.30/602,870.47
  6. Step 6: Final answer
    x = 815,546.11

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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.