Home / 1,332,114.80-1,998,431.40-385,516.40

Finding the Fourth Proportional to 1,332,114.80, 1,998,431.40 and 385,516.40

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Solution

The fourth proportional to 1,332,114.80, 1,998,431.40 and 385,516.40 is: 578,349.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,114.80 : 1,998,431.40 = 385,516.40 : x
  2. Step 2: Convert to fraction form
    1,332,114.80/1,998,431.40 = 385,516.40/x
  3. Step 3: Cross multiply
    1,332,114.80x = 1,998,431.40 × 385,516.40
  4. Step 4: Simplify right side
    1,332,114.80x = 770,428,078,974.96
  5. Step 5: Solve for x
    x = 770,428,078,974.96/1,332,114.80
  6. Step 6: Final answer
    x = 578,349.61

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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.