Home / 680,230.97-1,020,346.45-247,980.86

Finding the Fourth Proportional to 680,230.97, 1,020,346.45 and 247,980.86

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Solution

The fourth proportional to 680,230.97, 1,020,346.45 and 247,980.86 is: 371,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,230.97 : 1,020,346.45 = 247,980.86 : x
  2. Step 2: Convert to fraction form
    680,230.97/1,020,346.45 = 247,980.86/x
  3. Step 3: Cross multiply
    680,230.97x = 1,020,346.45 × 247,980.86
  4. Step 4: Simplify right side
    680,230.97x = 253,026,383,827.31
  5. Step 5: Solve for x
    x = 253,026,383,827.31/680,230.97
  6. Step 6: Final answer
    x = 371,971.28

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Similar ratio
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1.5x scale

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.