Home / 756,631.08-1,131,600.30-672,978.12

Finding the Fourth Proportional to 756,631.08, 1,131,600.30 and 672,978.12

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Solution

The fourth proportional to 756,631.08, 1,131,600.30 and 672,978.12 is: 1,006,490.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,631.08 : 1,131,600.30 = 672,978.12 : x
  2. Step 2: Convert to fraction form
    756,631.08/1,131,600.30 = 672,978.12/x
  3. Step 3: Cross multiply
    756,631.08x = 1,131,600.30 × 672,978.12
  4. Step 4: Simplify right side
    756,631.08x = 761,542,242,485.44
  5. Step 5: Solve for x
    x = 761,542,242,485.44/756,631.08
  6. Step 6: Final answer
    x = 1,006,490.83

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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.