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Finding the Fourth Proportional to 575,778.20, 794,574.97 and 321,145.79

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Solution

The fourth proportional to 575,778.20, 794,574.97 and 321,145.79 is: 443,181.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,778.20 : 794,574.97 = 321,145.79 : x
  2. Step 2: Convert to fraction form
    575,778.20/794,574.97 = 321,145.79/x
  3. Step 3: Cross multiply
    575,778.20x = 794,574.97 × 321,145.79
  4. Step 4: Simplify right side
    575,778.20x = 255,174,401,679.14
  5. Step 5: Solve for x
    x = 255,174,401,679.14/575,778.20
  6. Step 6: Final answer
    x = 443,181.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.