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Finding the Fourth Proportional to 374,682.58, 516,432.17 and 284,009.56

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Solution

The fourth proportional to 374,682.58, 516,432.17 and 284,009.56 is: 391,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,682.58 : 516,432.17 = 284,009.56 : x
  2. Step 2: Convert to fraction form
    374,682.58/516,432.17 = 284,009.56/x
  3. Step 3: Cross multiply
    374,682.58x = 516,432.17 × 284,009.56
  4. Step 4: Simplify right side
    374,682.58x = 146,671,672,790.49
  5. Step 5: Solve for x
    x = 146,671,672,790.49/374,682.58
  6. Step 6: Final answer
    x = 391,455.81

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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.