Home / 676,131.90-1,012,724.06-338,583.84

Finding the Fourth Proportional to 676,131.90, 1,012,724.06 and 338,583.84

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Solution

The fourth proportional to 676,131.90, 1,012,724.06 and 338,583.84 is: 507,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,131.90 : 1,012,724.06 = 338,583.84 : x
  2. Step 2: Convert to fraction form
    676,131.90/1,012,724.06 = 338,583.84/x
  3. Step 3: Cross multiply
    676,131.90x = 1,012,724.06 × 338,583.84
  4. Step 4: Simplify right side
    676,131.90x = 342,891,999,402.27
  5. Step 5: Solve for x
    x = 342,891,999,402.27/676,131.90
  6. Step 6: Final answer
    x = 507,137.73

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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.