Home / 1,291,940.08-1,782,864.30-718,970.56

Finding the Fourth Proportional to 1,291,940.08, 1,782,864.30 and 718,970.56

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Solution

The fourth proportional to 1,291,940.08, 1,782,864.30 and 718,970.56 is: 992,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,940.08 : 1,782,864.30 = 718,970.56 : x
  2. Step 2: Convert to fraction form
    1,291,940.08/1,782,864.30 = 718,970.56/x
  3. Step 3: Cross multiply
    1,291,940.08x = 1,782,864.30 × 718,970.56
  4. Step 4: Simplify right side
    1,291,940.08x = 1,281,826,944,175.01
  5. Step 5: Solve for x
    x = 1,281,826,944,175.01/1,291,940.08
  6. Step 6: Final answer
    x = 992,172.13

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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.