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Finding the Fourth Proportional to 616,326, 850,599 and 348,071.28

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Solution

The fourth proportional to 616,326, 850,599 and 348,071.28 is: 480,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,326 : 850,599 = 348,071.28 : x
  2. Step 2: Convert to fraction form
    616,326/850,599 = 348,071.28/x
  3. Step 3: Cross multiply
    616,326x = 850,599 × 348,071.28
  4. Step 4: Simplify right side
    616,326x = 296,069,082,696.72
  5. Step 5: Solve for x
    x = 296,069,082,696.72/616,326
  6. Step 6: Final answer
    x = 480,377.40

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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.