Home / 918,622.80-1,374,823.80-806,648.40

Finding the Fourth Proportional to 918,622.80, 1,374,823.80 and 806,648.40

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Solution

The fourth proportional to 918,622.80, 1,374,823.80 and 806,648.40 is: 1,207,241.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,622.80 : 1,374,823.80 = 806,648.40 : x
  2. Step 2: Convert to fraction form
    918,622.80/1,374,823.80 = 806,648.40/x
  3. Step 3: Cross multiply
    918,622.80x = 1,374,823.80 × 806,648.40
  4. Step 4: Simplify right side
    918,622.80x = 1,108,999,418,551.92
  5. Step 5: Solve for x
    x = 1,108,999,418,551.92/918,622.80
  6. Step 6: Final answer
    x = 1,207,241.34

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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.