Home / 1,331,794.16-1,997,987.16-621,434.72

Finding the Fourth Proportional to 1,331,794.16, 1,997,987.16 and 621,434.72

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Solution

The fourth proportional to 1,331,794.16, 1,997,987.16 and 621,434.72 is: 932,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,794.16 : 1,997,987.16 = 621,434.72 : x
  2. Step 2: Convert to fraction form
    1,331,794.16/1,997,987.16 = 621,434.72/x
  3. Step 3: Cross multiply
    1,331,794.16x = 1,997,987.16 × 621,434.72
  4. Step 4: Simplify right side
    1,331,794.16x = 1,241,618,591,338.20
  5. Step 5: Solve for x
    x = 1,241,618,591,338.20/1,331,794.16
  6. Step 6: Final answer
    x = 932,290.16

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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.