Home / 1,373,009.80-2,059,514.70-811,755.40

Finding the Fourth Proportional to 1,373,009.80, 2,059,514.70 and 811,755.40

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Solution

The fourth proportional to 1,373,009.80, 2,059,514.70 and 811,755.40 is: 1,217,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,009.80 : 2,059,514.70 = 811,755.40 : x
  2. Step 2: Convert to fraction form
    1,373,009.80/2,059,514.70 = 811,755.40/x
  3. Step 3: Cross multiply
    1,373,009.80x = 2,059,514.70 × 811,755.40
  4. Step 4: Simplify right side
    1,373,009.80x = 1,671,822,179,104.38
  5. Step 5: Solve for x
    x = 1,671,822,179,104.38/1,373,009.80
  6. Step 6: Final answer
    x = 1,217,633.10

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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.