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Finding the Fourth Proportional to 555,025.16, 765,934.80 and 300,376.34

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Solution

The fourth proportional to 555,025.16, 765,934.80 and 300,376.34 is: 414,519.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,025.16 : 765,934.80 = 300,376.34 : x
  2. Step 2: Convert to fraction form
    555,025.16/765,934.80 = 300,376.34/x
  3. Step 3: Cross multiply
    555,025.16x = 765,934.80 × 300,376.34
  4. Step 4: Simplify right side
    555,025.16x = 230,068,691,902.63
  5. Step 5: Solve for x
    x = 230,068,691,902.63/555,025.16
  6. Step 6: Final answer
    x = 414,519.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.