Home / 914,380.90-1,261,832.31-506,481.40

Finding the Fourth Proportional to 914,380.90, 1,261,832.31 and 506,481.40

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Solution

The fourth proportional to 914,380.90, 1,261,832.31 and 506,481.40 is: 698,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,380.90 : 1,261,832.31 = 506,481.40 : x
  2. Step 2: Convert to fraction form
    914,380.90/1,261,832.31 = 506,481.40/x
  3. Step 3: Cross multiply
    914,380.90x = 1,261,832.31 × 506,481.40
  4. Step 4: Simplify right side
    914,380.90x = 639,094,596,511.33
  5. Step 5: Solve for x
    x = 639,094,596,511.33/914,380.90
  6. Step 6: Final answer
    x = 698,936.95

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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.