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Finding the Fourth Proportional to 800,054.76, 1,103,862.77 and 455,883.31

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Solution

The fourth proportional to 800,054.76, 1,103,862.77 and 455,883.31 is: 628,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,054.76 : 1,103,862.77 = 455,883.31 : x
  2. Step 2: Convert to fraction form
    800,054.76/1,103,862.77 = 455,883.31/x
  3. Step 3: Cross multiply
    800,054.76x = 1,103,862.77 × 455,883.31
  4. Step 4: Simplify right side
    800,054.76x = 503,232,613,373.37
  5. Step 5: Solve for x
    x = 503,232,613,373.37/800,054.76
  6. Step 6: Final answer
    x = 628,997.72

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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.