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Finding the Fourth Proportional to 493,805.70, 740,708.55 and 488,556.90

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Solution

The fourth proportional to 493,805.70, 740,708.55 and 488,556.90 is: 732,835.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,805.70 : 740,708.55 = 488,556.90 : x
  2. Step 2: Convert to fraction form
    493,805.70/740,708.55 = 488,556.90/x
  3. Step 3: Cross multiply
    493,805.70x = 740,708.55 × 488,556.90
  4. Step 4: Simplify right side
    493,805.70x = 361,878,272,991.50
  5. Step 5: Solve for x
    x = 361,878,272,991.50/493,805.70
  6. Step 6: Final answer
    x = 732,835.35

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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.