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Finding the Fourth Proportional to 626,530.60, 939,139.80 and 247,304.80

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Solution

The fourth proportional to 626,530.60, 939,139.80 and 247,304.80 is: 370,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,530.60 : 939,139.80 = 247,304.80 : x
  2. Step 2: Convert to fraction form
    626,530.60/939,139.80 = 247,304.80/x
  3. Step 3: Cross multiply
    626,530.60x = 939,139.80 × 247,304.80
  4. Step 4: Simplify right side
    626,530.60x = 232,253,780,411.04
  5. Step 5: Solve for x
    x = 232,253,780,411.04/626,530.60
  6. Step 6: Final answer
    x = 370,698.22

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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.