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Finding the Fourth Proportional to 700,660.67, 966,907.31 and 394,835.28

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Solution

The fourth proportional to 700,660.67, 966,907.31 and 394,835.28 is: 544,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,660.67 : 966,907.31 = 394,835.28 : x
  2. Step 2: Convert to fraction form
    700,660.67/966,907.31 = 394,835.28/x
  3. Step 3: Cross multiply
    700,660.67x = 966,907.31 × 394,835.28
  4. Step 4: Simplify right side
    700,660.67x = 381,769,119,464.99
  5. Step 5: Solve for x
    x = 381,769,119,464.99/700,660.67
  6. Step 6: Final answer
    x = 544,870.20

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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.