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Finding the Fourth Proportional to 1,766,288.40, 2,649,964.51 and 551,815.98

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Solution

The fourth proportional to 1,766,288.40, 2,649,964.51 and 551,815.98 is: 827,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,288.40 : 2,649,964.51 = 551,815.98 : x
  2. Step 2: Convert to fraction form
    1,766,288.40/2,649,964.51 = 551,815.98/x
  3. Step 3: Cross multiply
    1,766,288.40x = 2,649,964.51 × 551,815.98
  4. Step 4: Simplify right side
    1,766,288.40x = 1,462,292,764,982.81
  5. Step 5: Solve for x
    x = 1,462,292,764,982.81/1,766,288.40
  6. Step 6: Final answer
    x = 827,890.15

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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.