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Finding the Fourth Proportional to 284,415.56, 426,623.34 and 84,730.79

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Solution

The fourth proportional to 284,415.56, 426,623.34 and 84,730.79 is: 127,096.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,415.56 : 426,623.34 = 84,730.79 : x
  2. Step 2: Convert to fraction form
    284,415.56/426,623.34 = 84,730.79/x
  3. Step 3: Cross multiply
    284,415.56x = 426,623.34 × 84,730.79
  4. Step 4: Simplify right side
    284,415.56x = 36,148,132,630.64
  5. Step 5: Solve for x
    x = 36,148,132,630.64/284,415.56
  6. Step 6: Final answer
    x = 127,096.19

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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.