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Finding the Fourth Proportional to 389,959.60, 585,376.80 and 301,604.80

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Solution

The fourth proportional to 389,959.60, 585,376.80 and 301,604.80 is: 452,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,959.60 : 585,376.80 = 301,604.80 : x
  2. Step 2: Convert to fraction form
    389,959.60/585,376.80 = 301,604.80/x
  3. Step 3: Cross multiply
    389,959.60x = 585,376.80 × 301,604.80
  4. Step 4: Simplify right side
    389,959.60x = 176,552,452,688.64
  5. Step 5: Solve for x
    x = 176,552,452,688.64/389,959.60
  6. Step 6: Final answer
    x = 452,745.50

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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.