Home / 1,087,261.14-1,500,240.30-628,418.52

Finding the Fourth Proportional to 1,087,261.14, 1,500,240.30 and 628,418.52

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Solution

The fourth proportional to 1,087,261.14, 1,500,240.30 and 628,418.52 is: 867,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,261.14 : 1,500,240.30 = 628,418.52 : x
  2. Step 2: Convert to fraction form
    1,087,261.14/1,500,240.30 = 628,418.52/x
  3. Step 3: Cross multiply
    1,087,261.14x = 1,500,240.30 × 628,418.52
  4. Step 4: Simplify right side
    1,087,261.14x = 942,778,788,970.36
  5. Step 5: Solve for x
    x = 942,778,788,970.36/1,087,261.14
  6. Step 6: Final answer
    x = 867,113.48

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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.