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Finding the Fourth Proportional to 656,577.54, 906,249.06 and 427,762.80

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Solution

The fourth proportional to 656,577.54, 906,249.06 and 427,762.80 is: 590,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,577.54 : 906,249.06 = 427,762.80 : x
  2. Step 2: Convert to fraction form
    656,577.54/906,249.06 = 427,762.80/x
  3. Step 3: Cross multiply
    656,577.54x = 906,249.06 × 427,762.80
  4. Step 4: Simplify right side
    656,577.54x = 387,659,635,402.97
  5. Step 5: Solve for x
    x = 387,659,635,402.97/656,577.54
  6. Step 6: Final answer
    x = 590,424.76

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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.