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Finding the Fourth Proportional to 622,781.80, 934,124.10 and 243,628.90

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Solution

The fourth proportional to 622,781.80, 934,124.10 and 243,628.90 is: 365,424.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,781.80 : 934,124.10 = 243,628.90 : x
  2. Step 2: Convert to fraction form
    622,781.80/934,124.10 = 243,628.90/x
  3. Step 3: Cross multiply
    622,781.80x = 934,124.10 × 243,628.90
  4. Step 4: Simplify right side
    622,781.80x = 227,579,626,946.49
  5. Step 5: Solve for x
    x = 227,579,626,946.49/622,781.80
  6. Step 6: Final answer
    x = 365,424.34

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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.