Home / 2,657,424.80-3,986,720.40-860,002.40

Finding the Fourth Proportional to 2,657,424.80, 3,986,720.40 and 860,002.40

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Solution

The fourth proportional to 2,657,424.80, 3,986,720.40 and 860,002.40 is: 1,290,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,424.80 : 3,986,720.40 = 860,002.40 : x
  2. Step 2: Convert to fraction form
    2,657,424.80/3,986,720.40 = 860,002.40/x
  3. Step 3: Cross multiply
    2,657,424.80x = 3,986,720.40 × 860,002.40
  4. Step 4: Simplify right side
    2,657,424.80x = 3,428,589,112,128.96
  5. Step 5: Solve for x
    x = 3,428,589,112,128.96/2,657,424.80
  6. Step 6: Final answer
    x = 1,290,192.34

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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.