Home / 1,338,158.07-2,007,219.79-327,288.40

Finding the Fourth Proportional to 1,338,158.07, 2,007,219.79 and 327,288.40

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Solution

The fourth proportional to 1,338,158.07, 2,007,219.79 and 327,288.40 is: 490,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,158.07 : 2,007,219.79 = 327,288.40 : x
  2. Step 2: Convert to fraction form
    1,338,158.07/2,007,219.79 = 327,288.40/x
  3. Step 3: Cross multiply
    1,338,158.07x = 2,007,219.79 × 327,288.40
  4. Step 4: Simplify right side
    1,338,158.07x = 656,939,748,908.50
  5. Step 5: Solve for x
    x = 656,939,748,908.50/1,338,158.07
  6. Step 6: Final answer
    x = 490,928.36

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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.