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Finding the Fourth Proportional to 605,124.36, 834,703.20 and 372,588.72

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Solution

The fourth proportional to 605,124.36, 834,703.20 and 372,588.72 is: 513,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,124.36 : 834,703.20 = 372,588.72 : x
  2. Step 2: Convert to fraction form
    605,124.36/834,703.20 = 372,588.72/x
  3. Step 3: Cross multiply
    605,124.36x = 834,703.20 × 372,588.72
  4. Step 4: Simplify right side
    605,124.36x = 311,000,996,867.90
  5. Step 5: Solve for x
    x = 311,000,996,867.90/605,124.36
  6. Step 6: Final answer
    x = 513,945.59

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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.