Home / 672,113.20-1,008,169.80-620,791.60

Finding the Fourth Proportional to 672,113.20, 1,008,169.80 and 620,791.60

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Solution

The fourth proportional to 672,113.20, 1,008,169.80 and 620,791.60 is: 931,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,113.20 : 1,008,169.80 = 620,791.60 : x
  2. Step 2: Convert to fraction form
    672,113.20/1,008,169.80 = 620,791.60/x
  3. Step 3: Cross multiply
    672,113.20x = 1,008,169.80 × 620,791.60
  4. Step 4: Simplify right side
    672,113.20x = 625,863,343,213.68
  5. Step 5: Solve for x
    x = 625,863,343,213.68/672,113.20
  6. Step 6: Final answer
    x = 931,187.40

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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.