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Finding the Fourth Proportional to 532,172.70, 798,492.80 and 279,394.47

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Solution

The fourth proportional to 532,172.70, 798,492.80 and 279,394.47 is: 419,214.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,172.70 : 798,492.80 = 279,394.47 : x
  2. Step 2: Convert to fraction form
    532,172.70/798,492.80 = 279,394.47/x
  3. Step 3: Cross multiply
    532,172.70x = 798,492.80 × 279,394.47
  4. Step 4: Simplify right side
    532,172.70x = 223,094,473,353.30
  5. Step 5: Solve for x
    x = 223,094,473,353.30/532,172.70
  6. Step 6: Final answer
    x = 419,214.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.