Home / 1,543,007.80-2,314,881.24-643,949.43

Finding the Fourth Proportional to 1,543,007.80, 2,314,881.24 and 643,949.43

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Solution

The fourth proportional to 1,543,007.80, 2,314,881.24 and 643,949.43 is: 966,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,007.80 : 2,314,881.24 = 643,949.43 : x
  2. Step 2: Convert to fraction form
    1,543,007.80/2,314,881.24 = 643,949.43/x
  3. Step 3: Cross multiply
    1,543,007.80x = 2,314,881.24 × 643,949.43
  4. Step 4: Simplify right side
    1,543,007.80x = 1,490,666,455,015.69
  5. Step 5: Solve for x
    x = 1,490,666,455,015.69/1,543,007.80
  6. Step 6: Final answer
    x = 966,078.37

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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.