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Finding the Fourth Proportional to 540,614.80, 746,018.28 and 298,883.26

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Solution

The fourth proportional to 540,614.80, 746,018.28 and 298,883.26 is: 412,442.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,614.80 : 746,018.28 = 298,883.26 : x
  2. Step 2: Convert to fraction form
    540,614.80/746,018.28 = 298,883.26/x
  3. Step 3: Cross multiply
    540,614.80x = 746,018.28 × 298,883.26
  4. Step 4: Simplify right side
    540,614.80x = 222,972,375,545.99
  5. Step 5: Solve for x
    x = 222,972,375,545.99/540,614.80
  6. Step 6: Final answer
    x = 412,442.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.