Home / 487,560.42-672,853.21-269,765.55

Finding the Fourth Proportional to 487,560.42, 672,853.21 and 269,765.55

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Solution

The fourth proportional to 487,560.42, 672,853.21 and 269,765.55 is: 372,287.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,560.42 : 672,853.21 = 269,765.55 : x
  2. Step 2: Convert to fraction form
    487,560.42/672,853.21 = 269,765.55/x
  3. Step 3: Cross multiply
    487,560.42x = 672,853.21 × 269,765.55
  4. Step 4: Simplify right side
    487,560.42x = 181,512,615,590.50
  5. Step 5: Solve for x
    x = 181,512,615,590.50/487,560.42
  6. Step 6: Final answer
    x = 372,287.43

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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.