Home / 689,759.84-951,951.45-417,819.75

Finding the Fourth Proportional to 689,759.84, 951,951.45 and 417,819.75

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Solution

The fourth proportional to 689,759.84, 951,951.45 and 417,819.75 is: 576,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,759.84 : 951,951.45 = 417,819.75 : x
  2. Step 2: Convert to fraction form
    689,759.84/951,951.45 = 417,819.75/x
  3. Step 3: Cross multiply
    689,759.84x = 951,951.45 × 417,819.75
  4. Step 4: Simplify right side
    689,759.84x = 397,744,116,851.14
  5. Step 5: Solve for x
    x = 397,744,116,851.14/689,759.84
  6. Step 6: Final answer
    x = 576,641.45

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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.