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Finding the Fourth Proportional to 909,964.80, 1,364,947.20 and 738,722.70

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Solution

The fourth proportional to 909,964.80, 1,364,947.20 and 738,722.70 is: 1,108,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,964.80 : 1,364,947.20 = 738,722.70 : x
  2. Step 2: Convert to fraction form
    909,964.80/1,364,947.20 = 738,722.70/x
  3. Step 3: Cross multiply
    909,964.80x = 1,364,947.20 × 738,722.70
  4. Step 4: Simplify right side
    909,964.80x = 1,008,317,480,941.44
  5. Step 5: Solve for x
    x = 1,008,317,480,941.44/909,964.80
  6. Step 6: Final answer
    x = 1,108,084.05

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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.