Home / 726,983.08-1,003,730.48-455,160.86

Finding the Fourth Proportional to 726,983.08, 1,003,730.48 and 455,160.86

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Solution

The fourth proportional to 726,983.08, 1,003,730.48 and 455,160.86 is: 628,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,983.08 : 1,003,730.48 = 455,160.86 : x
  2. Step 2: Convert to fraction form
    726,983.08/1,003,730.48 = 455,160.86/x
  3. Step 3: Cross multiply
    726,983.08x = 1,003,730.48 × 455,160.86
  4. Step 4: Simplify right side
    726,983.08x = 456,858,828,485.01
  5. Step 5: Solve for x
    x = 456,858,828,485.01/726,983.08
  6. Step 6: Final answer
    x = 628,431.17

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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.