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Finding the Fourth Proportional to 485,470.98, 669,675.60 and 303,867.63

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Solution

The fourth proportional to 485,470.98, 669,675.60 and 303,867.63 is: 419,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,470.98 : 669,675.60 = 303,867.63 : x
  2. Step 2: Convert to fraction form
    485,470.98/669,675.60 = 303,867.63/x
  3. Step 3: Cross multiply
    485,470.98x = 669,675.60 × 303,867.63
  4. Step 4: Simplify right side
    485,470.98x = 203,492,737,440.83
  5. Step 5: Solve for x
    x = 203,492,737,440.83/485,470.98
  6. Step 6: Final answer
    x = 419,165.61

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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.