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Finding the Fourth Proportional to 769,646.60, 1,061,424.66 and 483,193.32

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Solution

The fourth proportional to 769,646.60, 1,061,424.66 and 483,193.32 is: 666,375.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,646.60 : 1,061,424.66 = 483,193.32 : x
  2. Step 2: Convert to fraction form
    769,646.60/1,061,424.66 = 483,193.32/x
  3. Step 3: Cross multiply
    769,646.60x = 1,061,424.66 × 483,193.32
  4. Step 4: Simplify right side
    769,646.60x = 512,873,305,395.27
  5. Step 5: Solve for x
    x = 512,873,305,395.27/769,646.60
  6. Step 6: Final answer
    x = 666,375.07

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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.