Home / 1,120,268.32-1,545,530.16-689,801.92

Finding the Fourth Proportional to 1,120,268.32, 1,545,530.16 and 689,801.92

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Solution

The fourth proportional to 1,120,268.32, 1,545,530.16 and 689,801.92 is: 951,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,268.32 : 1,545,530.16 = 689,801.92 : x
  2. Step 2: Convert to fraction form
    1,120,268.32/1,545,530.16 = 689,801.92/x
  3. Step 3: Cross multiply
    1,120,268.32x = 1,545,530.16 × 689,801.92
  4. Step 4: Simplify right side
    1,120,268.32x = 1,066,109,671,785.91
  5. Step 5: Solve for x
    x = 1,066,109,671,785.91/1,120,268.32
  6. Step 6: Final answer
    x = 951,655.65

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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.