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Finding the Fourth Proportional to 700,546.26, 966,754.90 and 398,740.26

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Solution

The fourth proportional to 700,546.26, 966,754.90 and 398,740.26 is: 550,262.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,546.26 : 966,754.90 = 398,740.26 : x
  2. Step 2: Convert to fraction form
    700,546.26/966,754.90 = 398,740.26/x
  3. Step 3: Cross multiply
    700,546.26x = 966,754.90 × 398,740.26
  4. Step 4: Simplify right side
    700,546.26x = 385,484,100,182.27
  5. Step 5: Solve for x
    x = 385,484,100,182.27/700,546.26
  6. Step 6: Final answer
    x = 550,262.16

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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.