Home / 805,161.60-1,207,742.40-331,689.60

Finding the Fourth Proportional to 805,161.60, 1,207,742.40 and 331,689.60

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Solution

The fourth proportional to 805,161.60, 1,207,742.40 and 331,689.60 is: 497,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,161.60 : 1,207,742.40 = 331,689.60 : x
  2. Step 2: Convert to fraction form
    805,161.60/1,207,742.40 = 331,689.60/x
  3. Step 3: Cross multiply
    805,161.60x = 1,207,742.40 × 331,689.60
  4. Step 4: Simplify right side
    805,161.60x = 400,595,593,559.04
  5. Step 5: Solve for x
    x = 400,595,593,559.04/805,161.60
  6. Step 6: Final answer
    x = 497,534.40

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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.