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Finding the Fourth Proportional to 508,380.21, 701,624.57 and 282,040.29

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Solution

The fourth proportional to 508,380.21, 701,624.57 and 282,040.29 is: 389,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,380.21 : 701,624.57 = 282,040.29 : x
  2. Step 2: Convert to fraction form
    508,380.21/701,624.57 = 282,040.29/x
  3. Step 3: Cross multiply
    508,380.21x = 701,624.57 × 282,040.29
  4. Step 4: Simplify right side
    508,380.21x = 197,886,395,783.72
  5. Step 5: Solve for x
    x = 197,886,395,783.72/508,380.21
  6. Step 6: Final answer
    x = 389,248.82

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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.