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Finding the Fourth Proportional to 539,415.28, 808,872.63 and 314,840.35

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Solution

The fourth proportional to 539,415.28, 808,872.63 and 314,840.35 is: 472,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,415.28 : 808,872.63 = 314,840.35 : x
  2. Step 2: Convert to fraction form
    539,415.28/808,872.63 = 314,840.35/x
  3. Step 3: Cross multiply
    539,415.28x = 808,872.63 × 314,840.35
  4. Step 4: Simplify right side
    539,415.28x = 254,665,741,934.62
  5. Step 5: Solve for x
    x = 254,665,741,934.62/539,415.28
  6. Step 6: Final answer
    x = 472,114.44

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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.