Home / 689,727.30-951,284.45-448,087.73

Finding the Fourth Proportional to 689,727.30, 951,284.45 and 448,087.73

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Solution

The fourth proportional to 689,727.30, 951,284.45 and 448,087.73 is: 618,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,727.30 : 951,284.45 = 448,087.73 : x
  2. Step 2: Convert to fraction form
    689,727.30/951,284.45 = 448,087.73/x
  3. Step 3: Cross multiply
    689,727.30x = 951,284.45 × 448,087.73
  4. Step 4: Simplify right side
    689,727.30x = 426,258,889,715.91
  5. Step 5: Solve for x
    x = 426,258,889,715.91/689,727.30
  6. Step 6: Final answer
    x = 618,010.76

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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.