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Finding the Fourth Proportional to 610,852.08, 842,960 and 338,918.88

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Solution

The fourth proportional to 610,852.08, 842,960 and 338,918.88 is: 467,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,852.08 : 842,960 = 338,918.88 : x
  2. Step 2: Convert to fraction form
    610,852.08/842,960 = 338,918.88/x
  3. Step 3: Cross multiply
    610,852.08x = 842,960 × 338,918.88
  4. Step 4: Simplify right side
    610,852.08x = 285,695,059,084.80
  5. Step 5: Solve for x
    x = 285,695,059,084.80/610,852.08
  6. Step 6: Final answer
    x = 467,699.25

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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.