Home / 691,822.71-1,037,884.42-212,052.32

Finding the Fourth Proportional to 691,822.71, 1,037,884.42 and 212,052.32

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Solution

The fourth proportional to 691,822.71, 1,037,884.42 and 212,052.32 is: 318,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,822.71 : 1,037,884.42 = 212,052.32 : x
  2. Step 2: Convert to fraction form
    691,822.71/1,037,884.42 = 212,052.32/x
  3. Step 3: Cross multiply
    691,822.71x = 1,037,884.42 × 212,052.32
  4. Step 4: Simplify right side
    691,822.71x = 220,085,799,152.85
  5. Step 5: Solve for x
    x = 220,085,799,152.85/691,822.71
  6. Step 6: Final answer
    x = 318,124.57

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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.