Home / 901,398.78-1,243,933.20-493,503.84

Finding the Fourth Proportional to 901,398.78, 1,243,933.20 and 493,503.84

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Solution

The fourth proportional to 901,398.78, 1,243,933.20 and 493,503.84 is: 681,036.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,398.78 : 1,243,933.20 = 493,503.84 : x
  2. Step 2: Convert to fraction form
    901,398.78/1,243,933.20 = 493,503.84/x
  3. Step 3: Cross multiply
    901,398.78x = 1,243,933.20 × 493,503.84
  4. Step 4: Simplify right side
    901,398.78x = 613,885,810,903.49
  5. Step 5: Solve for x
    x = 613,885,810,903.49/901,398.78
  6. Step 6: Final answer
    x = 681,036.88

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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.