Home / 1,177,620.40-1,766,560.20-429,828.40

Finding the Fourth Proportional to 1,177,620.40, 1,766,560.20 and 429,828.40

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Solution

The fourth proportional to 1,177,620.40, 1,766,560.20 and 429,828.40 is: 644,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,620.40 : 1,766,560.20 = 429,828.40 : x
  2. Step 2: Convert to fraction form
    1,177,620.40/1,766,560.20 = 429,828.40/x
  3. Step 3: Cross multiply
    1,177,620.40x = 1,766,560.20 × 429,828.40
  4. Step 4: Simplify right side
    1,177,620.40x = 759,317,744,269.68
  5. Step 5: Solve for x
    x = 759,317,744,269.68/1,177,620.40
  6. Step 6: Final answer
    x = 644,789.90

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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.