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Finding the Fourth Proportional to 505,602.88, 698,012.24 and 344,694.35

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Solution

The fourth proportional to 505,602.88, 698,012.24 and 344,694.35 is: 475,869.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,602.88 : 698,012.24 = 344,694.35 : x
  2. Step 2: Convert to fraction form
    505,602.88/698,012.24 = 344,694.35/x
  3. Step 3: Cross multiply
    505,602.88x = 698,012.24 × 344,694.35
  4. Step 4: Simplify right side
    505,602.88x = 240,600,875,380.40
  5. Step 5: Solve for x
    x = 240,600,875,380.40/505,602.88
  6. Step 6: Final answer
    x = 475,869.28

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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.