Home / 704,764.80-1,057,147.20-406,166.40

Finding the Fourth Proportional to 704,764.80, 1,057,147.20 and 406,166.40

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Solution

The fourth proportional to 704,764.80, 1,057,147.20 and 406,166.40 is: 609,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,764.80 : 1,057,147.20 = 406,166.40 : x
  2. Step 2: Convert to fraction form
    704,764.80/1,057,147.20 = 406,166.40/x
  3. Step 3: Cross multiply
    704,764.80x = 1,057,147.20 × 406,166.40
  4. Step 4: Simplify right side
    704,764.80x = 429,377,672,494.08
  5. Step 5: Solve for x
    x = 429,377,672,494.08/704,764.80
  6. Step 6: Final answer
    x = 609,249.60

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Double scale
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Similar ratio
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1.5x scale

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.