Home / 1,245,666.80-1,719,020.21-672,706.98

Finding the Fourth Proportional to 1,245,666.80, 1,719,020.21 and 672,706.98

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Solution

The fourth proportional to 1,245,666.80, 1,719,020.21 and 672,706.98 is: 928,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,666.80 : 1,719,020.21 = 672,706.98 : x
  2. Step 2: Convert to fraction form
    1,245,666.80/1,719,020.21 = 672,706.98/x
  3. Step 3: Cross multiply
    1,245,666.80x = 1,719,020.21 × 672,706.98
  4. Step 4: Simplify right side
    1,245,666.80x = 1,156,396,890,664.53
  5. Step 5: Solve for x
    x = 1,156,396,890,664.53/1,245,666.80
  6. Step 6: Final answer
    x = 928,335.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.