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Finding the Fourth Proportional to 389,611.60, 584,854.80 and 301,256.80

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Solution

The fourth proportional to 389,611.60, 584,854.80 and 301,256.80 is: 452,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,611.60 : 584,854.80 = 301,256.80 : x
  2. Step 2: Convert to fraction form
    389,611.60/584,854.80 = 301,256.80/x
  3. Step 3: Cross multiply
    389,611.60x = 584,854.80 × 301,256.80
  4. Step 4: Simplify right side
    389,611.60x = 176,191,485,512.64
  5. Step 5: Solve for x
    x = 176,191,485,512.64/389,611.60
  6. Step 6: Final answer
    x = 452,223.41

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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.