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Finding the Fourth Proportional to 658,959.82, 909,353.72 and 368,578.16

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Solution

The fourth proportional to 658,959.82, 909,353.72 and 368,578.16 is: 508,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,959.82 : 909,353.72 = 368,578.16 : x
  2. Step 2: Convert to fraction form
    658,959.82/909,353.72 = 368,578.16/x
  3. Step 3: Cross multiply
    658,959.82x = 909,353.72 × 368,578.16
  4. Step 4: Simplify right side
    658,959.82x = 335,167,920,691.51
  5. Step 5: Solve for x
    x = 335,167,920,691.51/658,959.82
  6. Step 6: Final answer
    x = 508,631.80

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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.