Home / 689,731.12-951,855.84-417,645.22

Finding the Fourth Proportional to 689,731.12, 951,855.84 and 417,645.22

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Solution

The fourth proportional to 689,731.12, 951,855.84 and 417,645.22 is: 576,366.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,731.12 : 951,855.84 = 417,645.22 : x
  2. Step 2: Convert to fraction form
    689,731.12/951,855.84 = 417,645.22/x
  3. Step 3: Cross multiply
    689,731.12x = 951,855.84 × 417,645.22
  4. Step 4: Simplify right side
    689,731.12x = 397,538,041,705.09
  5. Step 5: Solve for x
    x = 397,538,041,705.09/689,731.12
  6. Step 6: Final answer
    x = 576,366.69

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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.