Home / 804,927.40-1,207,391.10-521,492.20

Finding the Fourth Proportional to 804,927.40, 1,207,391.10 and 521,492.20

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Solution

The fourth proportional to 804,927.40, 1,207,391.10 and 521,492.20 is: 782,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,927.40 : 1,207,391.10 = 521,492.20 : x
  2. Step 2: Convert to fraction form
    804,927.40/1,207,391.10 = 521,492.20/x
  3. Step 3: Cross multiply
    804,927.40x = 1,207,391.10 × 521,492.20
  4. Step 4: Simplify right side
    804,927.40x = 629,645,040,999.42
  5. Step 5: Solve for x
    x = 629,645,040,999.42/804,927.40
  6. Step 6: Final answer
    x = 782,238.30

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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.