Home / 1,121,122.08-1,680,683.18-410,984.36

Finding the Fourth Proportional to 1,121,122.08, 1,680,683.18 and 410,984.36

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Solution

The fourth proportional to 1,121,122.08, 1,680,683.18 and 410,984.36 is: 616,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,122.08 : 1,680,683.18 = 410,984.36 : x
  2. Step 2: Convert to fraction form
    1,121,122.08/1,680,683.18 = 410,984.36/x
  3. Step 3: Cross multiply
    1,121,122.08x = 1,680,683.18 × 410,984.36
  4. Step 4: Simplify right side
    1,121,122.08x = 690,734,490,636.73
  5. Step 5: Solve for x
    x = 690,734,490,636.73/1,121,122.08
  6. Step 6: Final answer
    x = 616,109.97

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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.