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Finding the Fourth Proportional to 324,986.56, 487,479.90 and 88,364.20

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Solution

The fourth proportional to 324,986.56, 487,479.90 and 88,364.20 is: 132,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,986.56 : 487,479.90 = 88,364.20 : x
  2. Step 2: Convert to fraction form
    324,986.56/487,479.90 = 88,364.20/x
  3. Step 3: Cross multiply
    324,986.56x = 487,479.90 × 88,364.20
  4. Step 4: Simplify right side
    324,986.56x = 43,075,771,379.58
  5. Step 5: Solve for x
    x = 43,075,771,379.58/324,986.56
  6. Step 6: Final answer
    x = 132,546.32

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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.