Home / 918,919.64-1,377,479.46-514,309.43

Finding the Fourth Proportional to 918,919.64, 1,377,479.46 and 514,309.43

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Solution

The fourth proportional to 918,919.64, 1,377,479.46 and 514,309.43 is: 770,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,919.64 : 1,377,479.46 = 514,309.43 : x
  2. Step 2: Convert to fraction form
    918,919.64/1,377,479.46 = 514,309.43/x
  3. Step 3: Cross multiply
    918,919.64x = 1,377,479.46 × 514,309.43
  4. Step 4: Simplify right side
    918,919.64x = 708,450,675,909.31
  5. Step 5: Solve for x
    x = 708,450,675,909.31/918,919.64
  6. Step 6: Final answer
    x = 770,960.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.