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Finding the Fourth Proportional to 675,476.36, 932,004.78 and 403,491.02

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Solution

The fourth proportional to 675,476.36, 932,004.78 and 403,491.02 is: 556,726.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,476.36 : 932,004.78 = 403,491.02 : x
  2. Step 2: Convert to fraction form
    675,476.36/932,004.78 = 403,491.02/x
  3. Step 3: Cross multiply
    675,476.36x = 932,004.78 × 403,491.02
  4. Step 4: Simplify right side
    675,476.36x = 376,055,560,666.12
  5. Step 5: Solve for x
    x = 376,055,560,666.12/675,476.36
  6. Step 6: Final answer
    x = 556,726.45

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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.