Home / 1,319,695.20-1,821,182.40-716,083.20

Finding the Fourth Proportional to 1,319,695.20, 1,821,182.40 and 716,083.20

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Solution

The fourth proportional to 1,319,695.20, 1,821,182.40 and 716,083.20 is: 988,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,695.20 : 1,821,182.40 = 716,083.20 : x
  2. Step 2: Convert to fraction form
    1,319,695.20/1,821,182.40 = 716,083.20/x
  3. Step 3: Cross multiply
    1,319,695.20x = 1,821,182.40 × 716,083.20
  4. Step 4: Simplify right side
    1,319,695.20x = 1,304,118,120,775.68
  5. Step 5: Solve for x
    x = 1,304,118,120,775.68/1,319,695.20
  6. Step 6: Final answer
    x = 988,196.46

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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.