Home / 1,217,821.22-1,680,551.41-673,979.93

Finding the Fourth Proportional to 1,217,821.22, 1,680,551.41 and 673,979.93

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Solution

The fourth proportional to 1,217,821.22, 1,680,551.41 and 673,979.93 is: 930,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,821.22 : 1,680,551.41 = 673,979.93 : x
  2. Step 2: Convert to fraction form
    1,217,821.22/1,680,551.41 = 673,979.93/x
  3. Step 3: Cross multiply
    1,217,821.22x = 1,680,551.41 × 673,979.93
  4. Step 4: Simplify right side
    1,217,821.22x = 1,132,657,921,673.20
  5. Step 5: Solve for x
    x = 1,132,657,921,673.20/1,217,821.22
  6. Step 6: Final answer
    x = 930,069.13

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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.