Home / 691,838.09-1,037,788.22-212,030.74

Finding the Fourth Proportional to 691,838.09, 1,037,788.22 and 212,030.74

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Solution

The fourth proportional to 691,838.09, 1,037,788.22 and 212,030.74 is: 318,055.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,838.09 : 1,037,788.22 = 212,030.74 : x
  2. Step 2: Convert to fraction form
    691,838.09/1,037,788.22 = 212,030.74/x
  3. Step 3: Cross multiply
    691,838.09x = 1,037,788.22 × 212,030.74
  4. Step 4: Simplify right side
    691,838.09x = 220,043,000,595.26
  5. Step 5: Solve for x
    x = 220,043,000,595.26/691,838.09
  6. Step 6: Final answer
    x = 318,055.63

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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.