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Finding the Fourth Proportional to 668,736.80, 922,849.08 and 366,930.80

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Solution

The fourth proportional to 668,736.80, 922,849.08 and 366,930.80 is: 506,360.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,736.80 : 922,849.08 = 366,930.80 : x
  2. Step 2: Convert to fraction form
    668,736.80/922,849.08 = 366,930.80/x
  3. Step 3: Cross multiply
    668,736.80x = 922,849.08 × 366,930.80
  4. Step 4: Simplify right side
    668,736.80x = 338,621,751,203.66
  5. Step 5: Solve for x
    x = 338,621,751,203.66/668,736.80
  6. Step 6: Final answer
    x = 506,360.28

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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.