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Finding the Fourth Proportional to 458,362.46, 684,456.75 and 374,286.89

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Solution

The fourth proportional to 458,362.46, 684,456.75 and 374,286.89 is: 558,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,362.46 : 684,456.75 = 374,286.89 : x
  2. Step 2: Convert to fraction form
    458,362.46/684,456.75 = 374,286.89/x
  3. Step 3: Cross multiply
    458,362.46x = 684,456.75 × 374,286.89
  4. Step 4: Simplify right side
    458,362.46x = 256,183,190,008.15
  5. Step 5: Solve for x
    x = 256,183,190,008.15/458,362.46
  6. Step 6: Final answer
    x = 558,909.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.