Home / 676,462.07-1,013,959.44-338,688.12

Finding the Fourth Proportional to 676,462.07, 1,013,959.44 and 338,688.12

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Solution

The fourth proportional to 676,462.07, 1,013,959.44 and 338,688.12 is: 507,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,462.07 : 1,013,959.44 = 338,688.12 : x
  2. Step 2: Convert to fraction form
    676,462.07/1,013,959.44 = 338,688.12/x
  3. Step 3: Cross multiply
    676,462.07x = 1,013,959.44 × 338,688.12
  4. Step 4: Simplify right side
    676,462.07x = 343,416,016,489.85
  5. Step 5: Solve for x
    x = 343,416,016,489.85/676,462.07
  6. Step 6: Final answer
    x = 507,664.85

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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.