Home / 1,345,221.68-1,856,418.60-741,631.28

Finding the Fourth Proportional to 1,345,221.68, 1,856,418.60 and 741,631.28

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Solution

The fourth proportional to 1,345,221.68, 1,856,418.60 and 741,631.28 is: 1,023,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,221.68 : 1,856,418.60 = 741,631.28 : x
  2. Step 2: Convert to fraction form
    1,345,221.68/1,856,418.60 = 741,631.28/x
  3. Step 3: Cross multiply
    1,345,221.68x = 1,856,418.60 × 741,631.28
  4. Step 4: Simplify right side
    1,345,221.68x = 1,376,778,102,533.81
  5. Step 5: Solve for x
    x = 1,376,778,102,533.81/1,345,221.68
  6. Step 6: Final answer
    x = 1,023,458.16

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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.