Home / 1,423,660.30-1,964,737.98-811,931.11

Finding the Fourth Proportional to 1,423,660.30, 1,964,737.98 and 811,931.11

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Solution

The fourth proportional to 1,423,660.30, 1,964,737.98 and 811,931.11 is: 1,120,514.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,660.30 : 1,964,737.98 = 811,931.11 : x
  2. Step 2: Convert to fraction form
    1,423,660.30/1,964,737.98 = 811,931.11/x
  3. Step 3: Cross multiply
    1,423,660.30x = 1,964,737.98 × 811,931.11
  4. Step 4: Simplify right side
    1,423,660.30x = 1,595,231,881,003.97
  5. Step 5: Solve for x
    x = 1,595,231,881,003.97/1,423,660.30
  6. Step 6: Final answer
    x = 1,120,514.41

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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.