Home / 676,047.78-1,013,743.62-338,943.60

Finding the Fourth Proportional to 676,047.78, 1,013,743.62 and 338,943.60

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Solution

The fourth proportional to 676,047.78, 1,013,743.62 and 338,943.60 is: 508,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,047.78 : 1,013,743.62 = 338,943.60 : x
  2. Step 2: Convert to fraction form
    676,047.78/1,013,743.62 = 338,943.60/x
  3. Step 3: Cross multiply
    676,047.78x = 1,013,743.62 × 338,943.60
  4. Step 4: Simplify right side
    676,047.78x = 343,601,912,039.83
  5. Step 5: Solve for x
    x = 343,601,912,039.83/676,047.78
  6. Step 6: Final answer
    x = 508,250.93

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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.