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Finding the Fourth Proportional to 699,560.80, 1,049,600.40 and 673,640.80

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Solution

The fourth proportional to 699,560.80, 1,049,600.40 and 673,640.80 is: 1,010,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,560.80 : 1,049,600.40 = 673,640.80 : x
  2. Step 2: Convert to fraction form
    699,560.80/1,049,600.40 = 673,640.80/x
  3. Step 3: Cross multiply
    699,560.80x = 1,049,600.40 × 673,640.80
  4. Step 4: Simplify right side
    699,560.80x = 707,053,653,136.32
  5. Step 5: Solve for x
    x = 707,053,653,136.32/699,560.80
  6. Step 6: Final answer
    x = 1,010,710.80

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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.