Home / 815,864.43-1,223,803.94-335,978.31

Finding the Fourth Proportional to 815,864.43, 1,223,803.94 and 335,978.31

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Solution

The fourth proportional to 815,864.43, 1,223,803.94 and 335,978.31 is: 503,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,864.43 : 1,223,803.94 = 335,978.31 : x
  2. Step 2: Convert to fraction form
    815,864.43/1,223,803.94 = 335,978.31/x
  3. Step 3: Cross multiply
    815,864.43x = 1,223,803.94 × 335,978.31
  4. Step 4: Simplify right side
    815,864.43x = 411,171,584,331.79
  5. Step 5: Solve for x
    x = 411,171,584,331.79/815,864.43
  6. Step 6: Final answer
    x = 503,970.47

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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.