Home / 630,642.20-945,400.80-231,189.71

Finding the Fourth Proportional to 630,642.20, 945,400.80 and 231,189.71

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Solution

The fourth proportional to 630,642.20, 945,400.80 and 231,189.71 is: 346,578.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,642.20 : 945,400.80 = 231,189.71 : x
  2. Step 2: Convert to fraction form
    630,642.20/945,400.80 = 231,189.71/x
  3. Step 3: Cross multiply
    630,642.20x = 945,400.80 × 231,189.71
  4. Step 4: Simplify right side
    630,642.20x = 218,566,939,149.27
  5. Step 5: Solve for x
    x = 218,566,939,149.27/630,642.20
  6. Step 6: Final answer
    x = 346,578.36

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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.