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Finding the Fourth Proportional to 617,839.70, 926,759.55 and 369,007.70

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Solution

The fourth proportional to 617,839.70, 926,759.55 and 369,007.70 is: 553,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,839.70 : 926,759.55 = 369,007.70 : x
  2. Step 2: Convert to fraction form
    617,839.70/926,759.55 = 369,007.70/x
  3. Step 3: Cross multiply
    617,839.70x = 926,759.55 × 369,007.70
  4. Step 4: Simplify right side
    617,839.70x = 341,981,409,998.54
  5. Step 5: Solve for x
    x = 341,981,409,998.54/617,839.70
  6. Step 6: Final answer
    x = 553,511.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.