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Finding the Fourth Proportional to 486,526.20, 730,664.10 and 353,556.60

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Solution

The fourth proportional to 486,526.20, 730,664.10 and 353,556.60 is: 530,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,526.20 : 730,664.10 = 353,556.60 : x
  2. Step 2: Convert to fraction form
    486,526.20/730,664.10 = 353,556.60/x
  3. Step 3: Cross multiply
    486,526.20x = 730,664.10 × 353,556.60
  4. Step 4: Simplify right side
    486,526.20x = 258,331,114,938.06
  5. Step 5: Solve for x
    x = 258,331,114,938.06/486,526.20
  6. Step 6: Final answer
    x = 530,970.61

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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.