Home / 1,312,827.52-1,811,676.72-739,856.20

Finding the Fourth Proportional to 1,312,827.52, 1,811,676.72 and 739,856.20

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Solution

The fourth proportional to 1,312,827.52, 1,811,676.72 and 739,856.20 is: 1,020,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,827.52 : 1,811,676.72 = 739,856.20 : x
  2. Step 2: Convert to fraction form
    1,312,827.52/1,811,676.72 = 739,856.20/x
  3. Step 3: Cross multiply
    1,312,827.52x = 1,811,676.72 × 739,856.20
  4. Step 4: Simplify right side
    1,312,827.52x = 1,340,380,253,687.66
  5. Step 5: Solve for x
    x = 1,340,380,253,687.66/1,312,827.52
  6. Step 6: Final answer
    x = 1,020,987.32

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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.