Home / 1,327,242.47-1,990,870.81-329,970.47

Finding the Fourth Proportional to 1,327,242.47, 1,990,870.81 and 329,970.47

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Solution

The fourth proportional to 1,327,242.47, 1,990,870.81 and 329,970.47 is: 494,957.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,242.47 : 1,990,870.81 = 329,970.47 : x
  2. Step 2: Convert to fraction form
    1,327,242.47/1,990,870.81 = 329,970.47/x
  3. Step 3: Cross multiply
    1,327,242.47x = 1,990,870.81 × 329,970.47
  4. Step 4: Simplify right side
    1,327,242.47x = 656,928,566,930.63
  5. Step 5: Solve for x
    x = 656,928,566,930.63/1,327,242.47
  6. Step 6: Final answer
    x = 494,957.47

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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.