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Finding the Fourth Proportional to 700,544.50, 966,752.49 and 398,738.50

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Solution

The fourth proportional to 700,544.50, 966,752.49 and 398,738.50 is: 550,259.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,544.50 : 966,752.49 = 398,738.50 : x
  2. Step 2: Convert to fraction form
    700,544.50/966,752.49 = 398,738.50/x
  3. Step 3: Cross multiply
    700,544.50x = 966,752.49 × 398,738.50
  4. Step 4: Simplify right side
    700,544.50x = 385,481,437,733.87
  5. Step 5: Solve for x
    x = 385,481,437,733.87/700,544.50
  6. Step 6: Final answer
    x = 550,259.74

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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.