Home / 1,131,327.95-1,561,265.03-689,828.40

Finding the Fourth Proportional to 1,131,327.95, 1,561,265.03 and 689,828.40

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Solution

The fourth proportional to 1,131,327.95, 1,561,265.03 and 689,828.40 is: 951,982.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,327.95 : 1,561,265.03 = 689,828.40 : x
  2. Step 2: Convert to fraction form
    1,131,327.95/1,561,265.03 = 689,828.40/x
  3. Step 3: Cross multiply
    1,131,327.95x = 1,561,265.03 × 689,828.40
  4. Step 4: Simplify right side
    1,131,327.95x = 1,077,004,959,345.42
  5. Step 5: Solve for x
    x = 1,077,004,959,345.42/1,131,327.95
  6. Step 6: Final answer
    x = 951,982.99

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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.