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Finding the Fourth Proportional to 305,871.60, 458,807.40 and 300,622.80

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Solution

The fourth proportional to 305,871.60, 458,807.40 and 300,622.80 is: 450,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,871.60 : 458,807.40 = 300,622.80 : x
  2. Step 2: Convert to fraction form
    305,871.60/458,807.40 = 300,622.80/x
  3. Step 3: Cross multiply
    305,871.60x = 458,807.40 × 300,622.80
  4. Step 4: Simplify right side
    305,871.60x = 137,927,965,248.72
  5. Step 5: Solve for x
    x = 137,927,965,248.72/305,871.60
  6. Step 6: Final answer
    x = 450,934.20

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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.