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Finding the Fourth Proportional to 869,767.59, 1,200,289.01 and 482,590.02

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Solution

The fourth proportional to 869,767.59, 1,200,289.01 and 482,590.02 is: 665,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,767.59 : 1,200,289.01 = 482,590.02 : x
  2. Step 2: Convert to fraction form
    869,767.59/1,200,289.01 = 482,590.02/x
  3. Step 3: Cross multiply
    869,767.59x = 1,200,289.01 × 482,590.02
  4. Step 4: Simplify right side
    869,767.59x = 579,247,494,928.73
  5. Step 5: Solve for x
    x = 579,247,494,928.73/869,767.59
  6. Step 6: Final answer
    x = 665,979.63

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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.