Home / 1,243,172.05-1,864,573.31-344,520.08

Finding the Fourth Proportional to 1,243,172.05, 1,864,573.31 and 344,520.08

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Solution

The fourth proportional to 1,243,172.05, 1,864,573.31 and 344,520.08 is: 516,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,172.05 : 1,864,573.31 = 344,520.08 : x
  2. Step 2: Convert to fraction form
    1,243,172.05/1,864,573.31 = 344,520.08/x
  3. Step 3: Cross multiply
    1,243,172.05x = 1,864,573.31 × 344,520.08
  4. Step 4: Simplify right side
    1,243,172.05x = 642,382,945,927.07
  5. Step 5: Solve for x
    x = 642,382,945,927.07/1,243,172.05
  6. Step 6: Final answer
    x = 516,728.92

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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.