Home / 726,976.08-1,003,720.82-455,153.85

Finding the Fourth Proportional to 726,976.08, 1,003,720.82 and 455,153.85

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Solution

The fourth proportional to 726,976.08, 1,003,720.82 and 455,153.85 is: 628,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,976.08 : 1,003,720.82 = 455,153.85 : x
  2. Step 2: Convert to fraction form
    726,976.08/1,003,720.82 = 455,153.85/x
  3. Step 3: Cross multiply
    726,976.08x = 1,003,720.82 × 455,153.85
  4. Step 4: Simplify right side
    726,976.08x = 456,847,393,272.39
  5. Step 5: Solve for x
    x = 456,847,393,272.39/726,976.08
  6. Step 6: Final answer
    x = 628,421.49

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1.5x scale

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.