Home / 885,719.74-1,221,872.27-522,900.54

Finding the Fourth Proportional to 885,719.74, 1,221,872.27 and 522,900.54

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Solution

The fourth proportional to 885,719.74, 1,221,872.27 and 522,900.54 is: 721,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,719.74 : 1,221,872.27 = 522,900.54 : x
  2. Step 2: Convert to fraction form
    885,719.74/1,221,872.27 = 522,900.54/x
  3. Step 3: Cross multiply
    885,719.74x = 1,221,872.27 × 522,900.54
  4. Step 4: Simplify right side
    885,719.74x = 638,917,667,179.52
  5. Step 5: Solve for x
    x = 638,917,667,179.52/885,719.74
  6. Step 6: Final answer
    x = 721,354.22

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1.5x scale

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.