Home / 860,637.60-1,290,956.40-708,422.40

Finding the Fourth Proportional to 860,637.60, 1,290,956.40 and 708,422.40

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Solution

The fourth proportional to 860,637.60, 1,290,956.40 and 708,422.40 is: 1,062,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,637.60 : 1,290,956.40 = 708,422.40 : x
  2. Step 2: Convert to fraction form
    860,637.60/1,290,956.40 = 708,422.40/x
  3. Step 3: Cross multiply
    860,637.60x = 1,290,956.40 × 708,422.40
  4. Step 4: Simplify right side
    860,637.60x = 914,542,431,183.36
  5. Step 5: Solve for x
    x = 914,542,431,183.36/860,637.60
  6. Step 6: Final answer
    x = 1,062,633.60

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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.