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Finding the Fourth Proportional to 453,432.60, 625,996.15 and 300,678.35

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Solution

The fourth proportional to 453,432.60, 625,996.15 and 300,678.35 is: 415,107.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,432.60 : 625,996.15 = 300,678.35 : x
  2. Step 2: Convert to fraction form
    453,432.60/625,996.15 = 300,678.35/x
  3. Step 3: Cross multiply
    453,432.60x = 625,996.15 × 300,678.35
  4. Step 4: Simplify right side
    453,432.60x = 188,223,485,606.68
  5. Step 5: Solve for x
    x = 188,223,485,606.68/453,432.60
  6. Step 6: Final answer
    x = 415,107.97

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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.