Home / 891,005.40-1,336,508.10-873,290.70

Finding the Fourth Proportional to 891,005.40, 1,336,508.10 and 873,290.70

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Solution

The fourth proportional to 891,005.40, 1,336,508.10 and 873,290.70 is: 1,309,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,005.40 : 1,336,508.10 = 873,290.70 : x
  2. Step 2: Convert to fraction form
    891,005.40/1,336,508.10 = 873,290.70/x
  3. Step 3: Cross multiply
    891,005.40x = 1,336,508.10 × 873,290.70
  4. Step 4: Simplify right side
    891,005.40x = 1,167,160,094,204.67
  5. Step 5: Solve for x
    x = 1,167,160,094,204.67/891,005.40
  6. Step 6: Final answer
    x = 1,309,936.05

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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.