Home / 1,178,631.30-1,626,467.94-720,513.12

Finding the Fourth Proportional to 1,178,631.30, 1,626,467.94 and 720,513.12

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Solution

The fourth proportional to 1,178,631.30, 1,626,467.94 and 720,513.12 is: 994,281.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,631.30 : 1,626,467.94 = 720,513.12 : x
  2. Step 2: Convert to fraction form
    1,178,631.30/1,626,467.94 = 720,513.12/x
  3. Step 3: Cross multiply
    1,178,631.30x = 1,626,467.94 × 720,513.12
  4. Step 4: Simplify right side
    1,178,631.30x = 1,171,891,490,029.37
  5. Step 5: Solve for x
    x = 1,171,891,490,029.37/1,178,631.30
  6. Step 6: Final answer
    x = 994,281.66

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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.