Home / 1,288,319.72-1,940,195.51-1,173,399.08

Finding the Fourth Proportional to 1,288,319.72, 1,940,195.51 and 1,173,399.08

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Solution

The fourth proportional to 1,288,319.72, 1,940,195.51 and 1,173,399.08 is: 1,767,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,319.72 : 1,940,195.51 = 1,173,399.08 : x
  2. Step 2: Convert to fraction form
    1,288,319.72/1,940,195.51 = 1,173,399.08/x
  3. Step 3: Cross multiply
    1,288,319.72x = 1,940,195.51 × 1,173,399.08
  4. Step 4: Simplify right side
    1,288,319.72x = 2,276,623,626,454.13
  5. Step 5: Solve for x
    x = 2,276,623,626,454.13/1,288,319.72
  6. Step 6: Final answer
    x = 1,767,126.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.