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Finding the Fourth Proportional to 489,557.25, 735,461.57 and 347,747.31

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Solution

The fourth proportional to 489,557.25, 735,461.57 and 347,747.31 is: 522,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,557.25 : 735,461.57 = 347,747.31 : x
  2. Step 2: Convert to fraction form
    489,557.25/735,461.57 = 347,747.31/x
  3. Step 3: Cross multiply
    489,557.25x = 735,461.57 × 347,747.31
  4. Step 4: Simplify right side
    489,557.25x = 255,754,783,445.25
  5. Step 5: Solve for x
    x = 255,754,783,445.25/489,557.25
  6. Step 6: Final answer
    x = 522,420.58

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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.