Home / 1,241,007.50-1,861,516.10-820,189.82

Finding the Fourth Proportional to 1,241,007.50, 1,861,516.10 and 820,189.82

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Solution

The fourth proportional to 1,241,007.50, 1,861,516.10 and 820,189.82 is: 1,230,287.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,007.50 : 1,861,516.10 = 820,189.82 : x
  2. Step 2: Convert to fraction form
    1,241,007.50/1,861,516.10 = 820,189.82/x
  3. Step 3: Cross multiply
    1,241,007.50x = 1,861,516.10 × 820,189.82
  4. Step 4: Simplify right side
    1,241,007.50x = 1,526,796,547,729.00
  5. Step 5: Solve for x
    x = 1,526,796,547,729.00/1,241,007.50
  6. Step 6: Final answer
    x = 1,230,287.93

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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.