Home / 1,121,774.27-1,548,027.32-686,159.56

Finding the Fourth Proportional to 1,121,774.27, 1,548,027.32 and 686,159.56

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Solution

The fourth proportional to 1,121,774.27, 1,548,027.32 and 686,159.56 is: 946,887.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,774.27 : 1,548,027.32 = 686,159.56 : x
  2. Step 2: Convert to fraction form
    1,121,774.27/1,548,027.32 = 686,159.56/x
  3. Step 3: Cross multiply
    1,121,774.27x = 1,548,027.32 × 686,159.56
  4. Step 4: Simplify right side
    1,121,774.27x = 1,062,193,740,345.23
  5. Step 5: Solve for x
    x = 1,062,193,740,345.23/1,121,774.27
  6. Step 6: Final answer
    x = 946,887.24

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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.