Home / 1,190,393.88-1,643,383.30-917,864.52

Finding the Fourth Proportional to 1,190,393.88, 1,643,383.30 and 917,864.52

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Solution

The fourth proportional to 1,190,393.88, 1,643,383.30 and 917,864.52 is: 1,267,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,393.88 : 1,643,383.30 = 917,864.52 : x
  2. Step 2: Convert to fraction form
    1,190,393.88/1,643,383.30 = 917,864.52/x
  3. Step 3: Cross multiply
    1,190,393.88x = 1,643,383.30 × 917,864.52
  4. Step 4: Simplify right side
    1,190,393.88x = 1,508,403,223,830.52
  5. Step 5: Solve for x
    x = 1,508,403,223,830.52/1,190,393.88
  6. Step 6: Final answer
    x = 1,267,146.32

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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.