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Finding the Fourth Proportional to 623,636.80, 935,730.60 and 303,611.20

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Solution

The fourth proportional to 623,636.80, 935,730.60 and 303,611.20 is: 455,550.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,636.80 : 935,730.60 = 303,611.20 : x
  2. Step 2: Convert to fraction form
    623,636.80/935,730.60 = 303,611.20/x
  3. Step 3: Cross multiply
    623,636.80x = 935,730.60 × 303,611.20
  4. Step 4: Simplify right side
    623,636.80x = 284,098,290,342.72
  5. Step 5: Solve for x
    x = 284,098,290,342.72/623,636.80
  6. Step 6: Final answer
    x = 455,550.88

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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.