Home / 1,245,122.10-1,867,913.55-403,701.30

Finding the Fourth Proportional to 1,245,122.10, 1,867,913.55 and 403,701.30

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Solution

The fourth proportional to 1,245,122.10, 1,867,913.55 and 403,701.30 is: 605,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,122.10 : 1,867,913.55 = 403,701.30 : x
  2. Step 2: Convert to fraction form
    1,245,122.10/1,867,913.55 = 403,701.30/x
  3. Step 3: Cross multiply
    1,245,122.10x = 1,867,913.55 × 403,701.30
  4. Step 4: Simplify right side
    1,245,122.10x = 754,079,128,422.62
  5. Step 5: Solve for x
    x = 754,079,128,422.62/1,245,122.10
  6. Step 6: Final answer
    x = 605,626.65

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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.