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Finding the Fourth Proportional to 827,801.66, 1,142,370.78 and 483,657.77

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Solution

The fourth proportional to 827,801.66, 1,142,370.78 and 483,657.77 is: 667,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,801.66 : 1,142,370.78 = 483,657.77 : x
  2. Step 2: Convert to fraction form
    827,801.66/1,142,370.78 = 483,657.77/x
  3. Step 3: Cross multiply
    827,801.66x = 1,142,370.78 × 483,657.77
  4. Step 4: Simplify right side
    827,801.66x = 552,516,505,010.17
  5. Step 5: Solve for x
    x = 552,516,505,010.17/827,801.66
  6. Step 6: Final answer
    x = 667,450.34

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Double scale
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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.