Home / 691,823.71-1,037,885.92-212,053.32

Finding the Fourth Proportional to 691,823.71, 1,037,885.92 and 212,053.32

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Solution

The fourth proportional to 691,823.71, 1,037,885.92 and 212,053.32 is: 318,126.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,823.71 : 1,037,885.92 = 212,053.32 : x
  2. Step 2: Convert to fraction form
    691,823.71/1,037,885.92 = 212,053.32/x
  3. Step 3: Cross multiply
    691,823.71x = 1,037,885.92 × 212,053.32
  4. Step 4: Simplify right side
    691,823.71x = 220,087,155,117.25
  5. Step 5: Solve for x
    x = 220,087,155,117.25/691,823.71
  6. Step 6: Final answer
    x = 318,126.07

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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.