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Finding the Fourth Proportional to 324,978.09, 487,477.13 and 88,325.79

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Solution

The fourth proportional to 324,978.09, 487,477.13 and 88,325.79 is: 132,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,978.09 : 487,477.13 = 88,325.79 : x
  2. Step 2: Convert to fraction form
    324,978.09/487,477.13 = 88,325.79/x
  3. Step 3: Cross multiply
    324,978.09x = 487,477.13 × 88,325.79
  4. Step 4: Simplify right side
    324,978.09x = 43,056,802,172.55
  5. Step 5: Solve for x
    x = 43,056,802,172.55/324,978.09
  6. Step 6: Final answer
    x = 132,491.40

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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.