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Finding the Fourth Proportional to 1,668,666, 2,503,076.76 and 486,714

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Solution

The fourth proportional to 1,668,666, 2,503,076.76 and 486,714 is: 730,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,666 : 2,503,076.76 = 486,714 : x
  2. Step 2: Convert to fraction form
    1,668,666/2,503,076.76 = 486,714/x
  3. Step 3: Cross multiply
    1,668,666x = 2,503,076.76 × 486,714
  4. Step 4: Simplify right side
    1,668,666x = 1,218,282,502,166.64
  5. Step 5: Solve for x
    x = 1,218,282,502,166.64/1,668,666
  6. Step 6: Final answer
    x = 730,093.68

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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.