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Finding the Fourth Proportional to 1,226,748.80, 1,840,123.20 and 970,869.80

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Solution

The fourth proportional to 1,226,748.80, 1,840,123.20 and 970,869.80 is: 1,456,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,748.80 : 1,840,123.20 = 970,869.80 : x
  2. Step 2: Convert to fraction form
    1,226,748.80/1,840,123.20 = 970,869.80/x
  3. Step 3: Cross multiply
    1,226,748.80x = 1,840,123.20 × 970,869.80
  4. Step 4: Simplify right side
    1,226,748.80x = 1,786,520,043,159.36
  5. Step 5: Solve for x
    x = 1,786,520,043,159.36/1,226,748.80
  6. Step 6: Final answer
    x = 1,456,304.70

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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.