Home / 754,547.65-1,040,968.56-427,791.78

Finding the Fourth Proportional to 754,547.65, 1,040,968.56 and 427,791.78

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Solution

The fourth proportional to 754,547.65, 1,040,968.56 and 427,791.78 is: 590,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,547.65 : 1,040,968.56 = 427,791.78 : x
  2. Step 2: Convert to fraction form
    754,547.65/1,040,968.56 = 427,791.78/x
  3. Step 3: Cross multiply
    754,547.65x = 1,040,968.56 × 427,791.78
  4. Step 4: Simplify right side
    754,547.65x = 445,317,794,810.66
  5. Step 5: Solve for x
    x = 445,317,794,810.66/754,547.65
  6. Step 6: Final answer
    x = 590,178.49

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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.