Home / 652,126.41-899,943.63-393,967.47

Finding the Fourth Proportional to 652,126.41, 899,943.63 and 393,967.47

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Solution

The fourth proportional to 652,126.41, 899,943.63 and 393,967.47 is: 543,680.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,126.41 : 899,943.63 = 393,967.47 : x
  2. Step 2: Convert to fraction form
    652,126.41/899,943.63 = 393,967.47/x
  3. Step 3: Cross multiply
    652,126.41x = 899,943.63 × 393,967.47
  4. Step 4: Simplify right side
    652,126.41x = 354,548,515,053.72
  5. Step 5: Solve for x
    x = 354,548,515,053.72/652,126.41
  6. Step 6: Final answer
    x = 543,680.66

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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.