Home / 1,331,575.68-1,997,659.52-621,216.21

Finding the Fourth Proportional to 1,331,575.68, 1,997,659.52 and 621,216.21

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Solution

The fourth proportional to 1,331,575.68, 1,997,659.52 and 621,216.21 is: 931,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,575.68 : 1,997,659.52 = 621,216.21 : x
  2. Step 2: Convert to fraction form
    1,331,575.68/1,997,659.52 = 621,216.21/x
  3. Step 3: Cross multiply
    1,331,575.68x = 1,997,659.52 × 621,216.21
  4. Step 4: Simplify right side
    1,331,575.68x = 1,240,978,472,778.74
  5. Step 5: Solve for x
    x = 1,240,978,472,778.74/1,331,575.68
  6. Step 6: Final answer
    x = 931,962.40

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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.