Home / 704,819.80-1,057,229.70-406,221.40

Finding the Fourth Proportional to 704,819.80, 1,057,229.70 and 406,221.40

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Solution

The fourth proportional to 704,819.80, 1,057,229.70 and 406,221.40 is: 609,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,819.80 : 1,057,229.70 = 406,221.40 : x
  2. Step 2: Convert to fraction form
    704,819.80/1,057,229.70 = 406,221.40/x
  3. Step 3: Cross multiply
    704,819.80x = 1,057,229.70 × 406,221.40
  4. Step 4: Simplify right side
    704,819.80x = 429,469,328,855.58
  5. Step 5: Solve for x
    x = 429,469,328,855.58/704,819.80
  6. Step 6: Final answer
    x = 609,332.10

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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.