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Finding the Fourth Proportional to 668,743.30, 922,858.05 and 366,937.30

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Solution

The fourth proportional to 668,743.30, 922,858.05 and 366,937.30 is: 506,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,743.30 : 922,858.05 = 366,937.30 : x
  2. Step 2: Convert to fraction form
    668,743.30/922,858.05 = 366,937.30/x
  3. Step 3: Cross multiply
    668,743.30x = 922,858.05 × 366,937.30
  4. Step 4: Simplify right side
    668,743.30x = 338,631,041,150.27
  5. Step 5: Solve for x
    x = 338,631,041,150.27/668,743.30
  6. Step 6: Final answer
    x = 506,369.25

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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.