Home / 989,134.60-1,479,765.30-857,477.20

Finding the Fourth Proportional to 989,134.60, 1,479,765.30 and 857,477.20

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Solution

The fourth proportional to 989,134.60, 1,479,765.30 and 857,477.20 is: 1,282,803.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,134.60 : 1,479,765.30 = 857,477.20 : x
  2. Step 2: Convert to fraction form
    989,134.60/1,479,765.30 = 857,477.20/x
  3. Step 3: Cross multiply
    989,134.60x = 1,479,765.30 × 857,477.20
  4. Step 4: Simplify right side
    989,134.60x = 1,268,865,006,101.16
  5. Step 5: Solve for x
    x = 1,268,865,006,101.16/989,134.60
  6. Step 6: Final answer
    x = 1,282,803.18

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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.