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Finding the Fourth Proportional to 700,310.09, 966,414.80 and 428,358.01

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Solution

The fourth proportional to 700,310.09, 966,414.80 and 428,358.01 is: 591,126.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,310.09 : 966,414.80 = 428,358.01 : x
  2. Step 2: Convert to fraction form
    700,310.09/966,414.80 = 428,358.01/x
  3. Step 3: Cross multiply
    700,310.09x = 966,414.80 × 428,358.01
  4. Step 4: Simplify right side
    700,310.09x = 413,971,520,562.55
  5. Step 5: Solve for x
    x = 413,971,520,562.55/700,310.09
  6. Step 6: Final answer
    x = 591,126.03

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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.