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Finding the Fourth Proportional to 487,453.52, 672,778.84 and 326,589.06

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Solution

The fourth proportional to 487,453.52, 672,778.84 and 326,589.06 is: 450,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,453.52 : 672,778.84 = 326,589.06 : x
  2. Step 2: Convert to fraction form
    487,453.52/672,778.84 = 326,589.06/x
  3. Step 3: Cross multiply
    487,453.52x = 672,778.84 × 326,589.06
  4. Step 4: Simplify right side
    487,453.52x = 219,722,208,943.49
  5. Step 5: Solve for x
    x = 219,722,208,943.49/487,453.52
  6. Step 6: Final answer
    x = 450,755.20

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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.