Home / 1,215,778.60-1,824,704.70-542,895.40

Finding the Fourth Proportional to 1,215,778.60, 1,824,704.70 and 542,895.40

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Solution

The fourth proportional to 1,215,778.60, 1,824,704.70 and 542,895.40 is: 814,806.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,778.60 : 1,824,704.70 = 542,895.40 : x
  2. Step 2: Convert to fraction form
    1,215,778.60/1,824,704.70 = 542,895.40/x
  3. Step 3: Cross multiply
    1,215,778.60x = 1,824,704.70 × 542,895.40
  4. Step 4: Simplify right side
    1,215,778.60x = 990,623,787,988.38
  5. Step 5: Solve for x
    x = 990,623,787,988.38/1,215,778.60
  6. Step 6: Final answer
    x = 814,806.07

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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.