Home / 739,813.62-1,020,942.75-400,281.87

Finding the Fourth Proportional to 739,813.62, 1,020,942.75 and 400,281.87

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Solution

The fourth proportional to 739,813.62, 1,020,942.75 and 400,281.87 is: 552,388.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,813.62 : 1,020,942.75 = 400,281.87 : x
  2. Step 2: Convert to fraction form
    739,813.62/1,020,942.75 = 400,281.87/x
  3. Step 3: Cross multiply
    739,813.62x = 1,020,942.75 × 400,281.87
  4. Step 4: Simplify right side
    739,813.62x = 408,664,873,132.94
  5. Step 5: Solve for x
    x = 408,664,873,132.94/739,813.62
  6. Step 6: Final answer
    x = 552,388.96

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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.