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Finding the Fourth Proportional to 478,622.88, 718,058.86 and 179,127

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Solution

The fourth proportional to 478,622.88, 718,058.86 and 179,127 is: 268,737.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,622.88 : 718,058.86 = 179,127 : x
  2. Step 2: Convert to fraction form
    478,622.88/718,058.86 = 179,127/x
  3. Step 3: Cross multiply
    478,622.88x = 718,058.86 × 179,127
  4. Step 4: Simplify right side
    478,622.88x = 128,623,728,967.40
  5. Step 5: Solve for x
    x = 128,623,728,967.40/478,622.88
  6. Step 6: Final answer
    x = 268,737.11

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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.