Home / 1,006,672.20-1,389,206.70-553,963.20

Finding the Fourth Proportional to 1,006,672.20, 1,389,206.70 and 553,963.20

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Solution

The fourth proportional to 1,006,672.20, 1,389,206.70 and 553,963.20 is: 764,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,672.20 : 1,389,206.70 = 553,963.20 : x
  2. Step 2: Convert to fraction form
    1,006,672.20/1,389,206.70 = 553,963.20/x
  3. Step 3: Cross multiply
    1,006,672.20x = 1,389,206.70 × 553,963.20
  4. Step 4: Simplify right side
    1,006,672.20x = 769,569,388,993.44
  5. Step 5: Solve for x
    x = 769,569,388,993.44/1,006,672.20
  6. Step 6: Final answer
    x = 764,468.70

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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.