Home / 814,008.10-1,220,720.55-414,516.10

Finding the Fourth Proportional to 814,008.10, 1,220,720.55 and 414,516.10

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Solution

The fourth proportional to 814,008.10, 1,220,720.55 and 414,516.10 is: 621,625.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,008.10 : 1,220,720.55 = 414,516.10 : x
  2. Step 2: Convert to fraction form
    814,008.10/1,220,720.55 = 414,516.10/x
  3. Step 3: Cross multiply
    814,008.10x = 1,220,720.55 × 414,516.10
  4. Step 4: Simplify right side
    814,008.10x = 506,008,321,575.86
  5. Step 5: Solve for x
    x = 506,008,321,575.86/814,008.10
  6. Step 6: Final answer
    x = 621,625.66

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1.5x scale

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.