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Finding the Fourth Proportional to 284,403.13, 426,674.86 and 84,722.74

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Solution

The fourth proportional to 284,403.13, 426,674.86 and 84,722.74 is: 127,105.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,403.13 : 426,674.86 = 84,722.74 : x
  2. Step 2: Convert to fraction form
    284,403.13/426,674.86 = 84,722.74/x
  3. Step 3: Cross multiply
    284,403.13x = 426,674.86 × 84,722.74
  4. Step 4: Simplify right side
    284,403.13x = 36,149,060,671.33
  5. Step 5: Solve for x
    x = 36,149,060,671.33/284,403.13
  6. Step 6: Final answer
    x = 127,105.01

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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.