Home / 1,099,378.16-1,648,761.06-389,215.52

Finding the Fourth Proportional to 1,099,378.16, 1,648,761.06 and 389,215.52

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Solution

The fourth proportional to 1,099,378.16, 1,648,761.06 and 389,215.52 is: 583,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,378.16 : 1,648,761.06 = 389,215.52 : x
  2. Step 2: Convert to fraction form
    1,099,378.16/1,648,761.06 = 389,215.52/x
  3. Step 3: Cross multiply
    1,099,378.16x = 1,648,761.06 × 389,215.52
  4. Step 4: Simplify right side
    1,099,378.16x = 641,723,393,323.65
  5. Step 5: Solve for x
    x = 641,723,393,323.65/1,099,378.16
  6. Step 6: Final answer
    x = 583,714.88

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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.