Home / 868,939.60-1,303,409.40-839,909.20

Finding the Fourth Proportional to 868,939.60, 1,303,409.40 and 839,909.20

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Solution

The fourth proportional to 868,939.60, 1,303,409.40 and 839,909.20 is: 1,259,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,939.60 : 1,303,409.40 = 839,909.20 : x
  2. Step 2: Convert to fraction form
    868,939.60/1,303,409.40 = 839,909.20/x
  3. Step 3: Cross multiply
    868,939.60x = 1,303,409.40 × 839,909.20
  4. Step 4: Simplify right side
    868,939.60x = 1,094,745,546,426.48
  5. Step 5: Solve for x
    x = 1,094,745,546,426.48/868,939.60
  6. Step 6: Final answer
    x = 1,259,863.80

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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.