Home / 1,239,854.36-1,858,007.10-706,272.80

Finding the Fourth Proportional to 1,239,854.36, 1,858,007.10 and 706,272.80

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Solution

The fourth proportional to 1,239,854.36, 1,858,007.10 and 706,272.80 is: 1,058,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,854.36 : 1,858,007.10 = 706,272.80 : x
  2. Step 2: Convert to fraction form
    1,239,854.36/1,858,007.10 = 706,272.80/x
  3. Step 3: Cross multiply
    1,239,854.36x = 1,858,007.10 × 706,272.80
  4. Step 4: Simplify right side
    1,239,854.36x = 1,312,259,876,936.88
  5. Step 5: Solve for x
    x = 1,312,259,876,936.88/1,239,854.36
  6. Step 6: Final answer
    x = 1,058,398.40

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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.