Home / 1,015,722.11-1,401,687.55-556,828.34

Finding the Fourth Proportional to 1,015,722.11, 1,401,687.55 and 556,828.34

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Solution

The fourth proportional to 1,015,722.11, 1,401,687.55 and 556,828.34 is: 768,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,722.11 : 1,401,687.55 = 556,828.34 : x
  2. Step 2: Convert to fraction form
    1,015,722.11/1,401,687.55 = 556,828.34/x
  3. Step 3: Cross multiply
    1,015,722.11x = 1,401,687.55 × 556,828.34
  4. Step 4: Simplify right side
    1,015,722.11x = 780,499,351,665.17
  5. Step 5: Solve for x
    x = 780,499,351,665.17/1,015,722.11
  6. Step 6: Final answer
    x = 768,418.20

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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.