Home / 1,215,660.20-1,821,084.60-1,066,069.40

Finding the Fourth Proportional to 1,215,660.20, 1,821,084.60 and 1,066,069.40

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Solution

The fourth proportional to 1,215,660.20, 1,821,084.60 and 1,066,069.40 is: 1,596,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,660.20 : 1,821,084.60 = 1,066,069.40 : x
  2. Step 2: Convert to fraction form
    1,215,660.20/1,821,084.60 = 1,066,069.40/x
  3. Step 3: Cross multiply
    1,215,660.20x = 1,821,084.60 × 1,066,069.40
  4. Step 4: Simplify right side
    1,215,660.20x = 1,941,402,566,871.24
  5. Step 5: Solve for x
    x = 1,941,402,566,871.24/1,215,660.20
  6. Step 6: Final answer
    x = 1,596,994.43

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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.