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Finding the Fourth Proportional to 453,478.92, 679,470.94 and 263,405.76

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Solution

The fourth proportional to 453,478.92, 679,470.94 and 263,405.76 is: 394,674.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,478.92 : 679,470.94 = 263,405.76 : x
  2. Step 2: Convert to fraction form
    453,478.92/679,470.94 = 263,405.76/x
  3. Step 3: Cross multiply
    453,478.92x = 679,470.94 × 263,405.76
  4. Step 4: Simplify right side
    453,478.92x = 178,976,559,348.61
  5. Step 5: Solve for x
    x = 178,976,559,348.61/453,478.92
  6. Step 6: Final answer
    x = 394,674.49

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1.5x scale

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.