Home / 691,838.52-1,037,788.87-212,031.18

Finding the Fourth Proportional to 691,838.52, 1,037,788.87 and 212,031.18

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Solution

The fourth proportional to 691,838.52, 1,037,788.87 and 212,031.18 is: 318,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,838.52 : 1,037,788.87 = 212,031.18 : x
  2. Step 2: Convert to fraction form
    691,838.52/1,037,788.87 = 212,031.18/x
  3. Step 3: Cross multiply
    691,838.52x = 1,037,788.87 × 212,031.18
  4. Step 4: Simplify right side
    691,838.52x = 220,043,598,696.97
  5. Step 5: Solve for x
    x = 220,043,598,696.97/691,838.52
  6. Step 6: Final answer
    x = 318,056.30

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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.