Home / 1,207,431.20-1,811,146.80-787,527.20

Finding the Fourth Proportional to 1,207,431.20, 1,811,146.80 and 787,527.20

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Solution

The fourth proportional to 1,207,431.20, 1,811,146.80 and 787,527.20 is: 1,181,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,431.20 : 1,811,146.80 = 787,527.20 : x
  2. Step 2: Convert to fraction form
    1,207,431.20/1,811,146.80 = 787,527.20/x
  3. Step 3: Cross multiply
    1,207,431.20x = 1,811,146.80 × 787,527.20
  4. Step 4: Simplify right side
    1,207,431.20x = 1,426,327,368,192.96
  5. Step 5: Solve for x
    x = 1,426,327,368,192.96/1,207,431.20
  6. Step 6: Final answer
    x = 1,181,290.80

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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.