Home / 1,373,117.80-2,059,676.70-811,863.40

Finding the Fourth Proportional to 1,373,117.80, 2,059,676.70 and 811,863.40

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Solution

The fourth proportional to 1,373,117.80, 2,059,676.70 and 811,863.40 is: 1,217,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,117.80 : 2,059,676.70 = 811,863.40 : x
  2. Step 2: Convert to fraction form
    1,373,117.80/2,059,676.70 = 811,863.40/x
  3. Step 3: Cross multiply
    1,373,117.80x = 2,059,676.70 × 811,863.40
  4. Step 4: Simplify right side
    1,373,117.80x = 1,672,176,128,562.78
  5. Step 5: Solve for x
    x = 1,672,176,128,562.78/1,373,117.80
  6. Step 6: Final answer
    x = 1,217,795.10

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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.