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Finding the Fourth Proportional to 394,886.40, 592,329.60 and 310,905.60

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Solution

The fourth proportional to 394,886.40, 592,329.60 and 310,905.60 is: 466,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,886.40 : 592,329.60 = 310,905.60 : x
  2. Step 2: Convert to fraction form
    394,886.40/592,329.60 = 310,905.60/x
  3. Step 3: Cross multiply
    394,886.40x = 592,329.60 × 310,905.60
  4. Step 4: Simplify right side
    394,886.40x = 184,158,589,685.76
  5. Step 5: Solve for x
    x = 184,158,589,685.76/394,886.40
  6. Step 6: Final answer
    x = 466,358.40

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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.