Home / 1,811,931-2,500,401.08-996,128.75

Finding the Fourth Proportional to 1,811,931, 2,500,401.08 and 996,128.75

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Solution

The fourth proportional to 1,811,931, 2,500,401.08 and 996,128.75 is: 1,374,622.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,931 : 2,500,401.08 = 996,128.75 : x
  2. Step 2: Convert to fraction form
    1,811,931/2,500,401.08 = 996,128.75/x
  3. Step 3: Cross multiply
    1,811,931x = 2,500,401.08 × 996,128.75
  4. Step 4: Simplify right side
    1,811,931x = 2,490,721,384,836.40
  5. Step 5: Solve for x
    x = 2,490,721,384,836.40/1,811,931
  6. Step 6: Final answer
    x = 1,374,622.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.