Home / 1,218,171.30-1,681,056.04-674,295.42

Finding the Fourth Proportional to 1,218,171.30, 1,681,056.04 and 674,295.42

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Solution

The fourth proportional to 1,218,171.30, 1,681,056.04 and 674,295.42 is: 930,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,171.30 : 1,681,056.04 = 674,295.42 : x
  2. Step 2: Convert to fraction form
    1,218,171.30/1,681,056.04 = 674,295.42/x
  3. Step 3: Cross multiply
    1,218,171.30x = 1,681,056.04 × 674,295.42
  4. Step 4: Simplify right side
    1,218,171.30x = 1,133,528,388,535.34
  5. Step 5: Solve for x
    x = 1,133,528,388,535.34/1,218,171.30
  6. Step 6: Final answer
    x = 930,516.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.