Home / 686,073.64-1,028,560.92-326,063.76

Finding the Fourth Proportional to 686,073.64, 1,028,560.92 and 326,063.76

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Solution

The fourth proportional to 686,073.64, 1,028,560.92 and 326,063.76 is: 488,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,073.64 : 1,028,560.92 = 326,063.76 : x
  2. Step 2: Convert to fraction form
    686,073.64/1,028,560.92 = 326,063.76/x
  3. Step 3: Cross multiply
    686,073.64x = 1,028,560.92 × 326,063.76
  4. Step 4: Simplify right side
    686,073.64x = 335,376,440,964.26
  5. Step 5: Solve for x
    x = 335,376,440,964.26/686,073.64
  6. Step 6: Final answer
    x = 488,834.47

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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.