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Finding the Fourth Proportional to 697,675.87, 962,942.64 and 425,685.36

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Solution

The fourth proportional to 697,675.87, 962,942.64 and 425,685.36 is: 587,537.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,675.87 : 962,942.64 = 425,685.36 : x
  2. Step 2: Convert to fraction form
    697,675.87/962,942.64 = 425,685.36/x
  3. Step 3: Cross multiply
    697,675.87x = 962,942.64 × 425,685.36
  4. Step 4: Simplify right side
    697,675.87x = 409,910,584,367.75
  5. Step 5: Solve for x
    x = 409,910,584,367.75/697,675.87
  6. Step 6: Final answer
    x = 587,537.28

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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.