Home / 918,610.80-1,374,805.80-806,636.40

Finding the Fourth Proportional to 918,610.80, 1,374,805.80 and 806,636.40

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Solution

The fourth proportional to 918,610.80, 1,374,805.80 and 806,636.40 is: 1,207,223.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,610.80 : 1,374,805.80 = 806,636.40 : x
  2. Step 2: Convert to fraction form
    918,610.80/1,374,805.80 = 806,636.40/x
  3. Step 3: Cross multiply
    918,610.80x = 1,374,805.80 × 806,636.40
  4. Step 4: Simplify right side
    918,610.80x = 1,108,968,401,211.12
  5. Step 5: Solve for x
    x = 1,108,968,401,211.12/918,610.80
  6. Step 6: Final answer
    x = 1,207,223.34

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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.