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Finding the Fourth Proportional to 284,392.20, 426,588.30 and 84,707.39

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Solution

The fourth proportional to 284,392.20, 426,588.30 and 84,707.39 is: 127,061.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,392.20 : 426,588.30 = 84,707.39 : x
  2. Step 2: Convert to fraction form
    284,392.20/426,588.30 = 84,707.39/x
  3. Step 3: Cross multiply
    284,392.20x = 426,588.30 × 84,707.39
  4. Step 4: Simplify right side
    284,392.20x = 36,135,181,074.00
  5. Step 5: Solve for x
    x = 36,135,181,074.00/284,392.20
  6. Step 6: Final answer
    x = 127,061.09

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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.