Home / 676,139.40-1,012,735.26-338,591.34

Finding the Fourth Proportional to 676,139.40, 1,012,735.26 and 338,591.34

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Solution

The fourth proportional to 676,139.40, 1,012,735.26 and 338,591.34 is: 507,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,139.40 : 1,012,735.26 = 338,591.34 : x
  2. Step 2: Convert to fraction form
    676,139.40/1,012,735.26 = 338,591.34/x
  3. Step 3: Cross multiply
    676,139.40x = 1,012,735.26 × 338,591.34
  4. Step 4: Simplify right side
    676,139.40x = 342,903,388,748.65
  5. Step 5: Solve for x
    x = 342,903,388,748.65/676,139.40
  6. Step 6: Final answer
    x = 507,148.95

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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.