Home / 861,718.51-1,292,578.10-860,473.29

Finding the Fourth Proportional to 861,718.51, 1,292,578.10 and 860,473.29

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Solution

The fourth proportional to 861,718.51, 1,292,578.10 and 860,473.29 is: 1,290,710.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,718.51 : 1,292,578.10 = 860,473.29 : x
  2. Step 2: Convert to fraction form
    861,718.51/1,292,578.10 = 860,473.29/x
  3. Step 3: Cross multiply
    861,718.51x = 1,292,578.10 × 860,473.29
  4. Step 4: Simplify right side
    861,718.51x = 1,112,228,930,288.95
  5. Step 5: Solve for x
    x = 1,112,228,930,288.95/861,718.51
  6. Step 6: Final answer
    x = 1,290,710.27

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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.