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Finding the Fourth Proportional to 642,888, 964,332 and 248,904

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Solution

The fourth proportional to 642,888, 964,332 and 248,904 is: 373,356

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,888 : 964,332 = 248,904 : x
  2. Step 2: Convert to fraction form
    642,888/964,332 = 248,904/x
  3. Step 3: Cross multiply
    642,888x = 964,332 × 248,904
  4. Step 4: Simplify right side
    642,888x = 240,026,092,128
  5. Step 5: Solve for x
    x = 240,026,092,128/642,888
  6. Step 6: Final answer
    x = 373,356

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.