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Finding the Fourth Proportional to 938,659.04, 1,407,846 and 307,558.88

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Solution

The fourth proportional to 938,659.04, 1,407,846 and 307,558.88 is: 461,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,659.04 : 1,407,846 = 307,558.88 : x
  2. Step 2: Convert to fraction form
    938,659.04/1,407,846 = 307,558.88/x
  3. Step 3: Cross multiply
    938,659.04x = 1,407,846 × 307,558.88
  4. Step 4: Simplify right side
    938,659.04x = 432,995,538,972.48
  5. Step 5: Solve for x
    x = 432,995,538,972.48/938,659.04
  6. Step 6: Final answer
    x = 461,291.61

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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.