Home / 689,717.68-951,942.02-456,733.84

Finding the Fourth Proportional to 689,717.68, 951,942.02 and 456,733.84

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Solution

The fourth proportional to 689,717.68, 951,942.02 and 456,733.84 is: 630,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,717.68 : 951,942.02 = 456,733.84 : x
  2. Step 2: Convert to fraction form
    689,717.68/951,942.02 = 456,733.84/x
  3. Step 3: Cross multiply
    689,717.68x = 951,942.02 × 456,733.84
  4. Step 4: Simplify right side
    689,717.68x = 434,784,133,942.45
  5. Step 5: Solve for x
    x = 434,784,133,942.45/689,717.68
  6. Step 6: Final answer
    x = 630,379.86

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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.