Home / 1,420,668-2,131,842.75-522,740.30

Finding the Fourth Proportional to 1,420,668, 2,131,842.75 and 522,740.30

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Solution

The fourth proportional to 1,420,668, 2,131,842.75 and 522,740.30 is: 784,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,668 : 2,131,842.75 = 522,740.30 : x
  2. Step 2: Convert to fraction form
    1,420,668/2,131,842.75 = 522,740.30/x
  3. Step 3: Cross multiply
    1,420,668x = 2,131,842.75 × 522,740.30
  4. Step 4: Simplify right side
    1,420,668x = 1,114,400,128,994.78
  5. Step 5: Solve for x
    x = 1,114,400,128,994.78/1,420,668
  6. Step 6: Final answer
    x = 784,419.81

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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.