Home / 691,931.07-1,037,890.35-218,616.39

Finding the Fourth Proportional to 691,931.07, 1,037,890.35 and 218,616.39

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Solution

The fourth proportional to 691,931.07, 1,037,890.35 and 218,616.39 is: 327,922.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,931.07 : 1,037,890.35 = 218,616.39 : x
  2. Step 2: Convert to fraction form
    691,931.07/1,037,890.35 = 218,616.39/x
  3. Step 3: Cross multiply
    691,931.07x = 1,037,890.35 × 218,616.39
  4. Step 4: Simplify right side
    691,931.07x = 226,899,841,532.84
  5. Step 5: Solve for x
    x = 226,899,841,532.84/691,931.07
  6. Step 6: Final answer
    x = 327,922.61

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1.5x scale

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.