Home / 762,009.40-1,142,213.94-256,394.86

Finding the Fourth Proportional to 762,009.40, 1,142,213.94 and 256,394.86

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Solution

The fourth proportional to 762,009.40, 1,142,213.94 and 256,394.86 is: 384,323.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,009.40 : 1,142,213.94 = 256,394.86 : x
  2. Step 2: Convert to fraction form
    762,009.40/1,142,213.94 = 256,394.86/x
  3. Step 3: Cross multiply
    762,009.40x = 1,142,213.94 × 256,394.86
  4. Step 4: Simplify right side
    762,009.40x = 292,857,783,236.35
  5. Step 5: Solve for x
    x = 292,857,783,236.35/762,009.40
  6. Step 6: Final answer
    x = 384,323.06

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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.