Home / 1,109,537.28-1,663,307.16-399,066

Finding the Fourth Proportional to 1,109,537.28, 1,663,307.16 and 399,066

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Solution

The fourth proportional to 1,109,537.28, 1,663,307.16 and 399,066 is: 598,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,537.28 : 1,663,307.16 = 399,066 : x
  2. Step 2: Convert to fraction form
    1,109,537.28/1,663,307.16 = 399,066/x
  3. Step 3: Cross multiply
    1,109,537.28x = 1,663,307.16 × 399,066
  4. Step 4: Simplify right side
    1,109,537.28x = 663,769,335,112.56
  5. Step 5: Solve for x
    x = 663,769,335,112.56/1,109,537.28
  6. Step 6: Final answer
    x = 598,239.78

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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.