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Finding the Fourth Proportional to 619,742, 930,006.26 and 264,758.70

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Solution

The fourth proportional to 619,742, 930,006.26 and 264,758.70 is: 397,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,742 : 930,006.26 = 264,758.70 : x
  2. Step 2: Convert to fraction form
    619,742/930,006.26 = 264,758.70/x
  3. Step 3: Cross multiply
    619,742x = 930,006.26 × 264,758.70
  4. Step 4: Simplify right side
    619,742x = 246,227,248,389.46
  5. Step 5: Solve for x
    x = 246,227,248,389.46/619,742
  6. Step 6: Final answer
    x = 397,306.05

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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.