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Finding the Fourth Proportional to 626,547.60, 939,165.30 and 247,321.80

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Solution

The fourth proportional to 626,547.60, 939,165.30 and 247,321.80 is: 370,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,547.60 : 939,165.30 = 247,321.80 : x
  2. Step 2: Convert to fraction form
    626,547.60/939,165.30 = 247,321.80/x
  3. Step 3: Cross multiply
    626,547.60x = 939,165.30 × 247,321.80
  4. Step 4: Simplify right side
    626,547.60x = 232,276,052,493.54
  5. Step 5: Solve for x
    x = 232,276,052,493.54/626,547.60
  6. Step 6: Final answer
    x = 370,723.71

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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.