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Finding the Fourth Proportional to 668,398.60, 922,448.37 and 366,650.92

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Solution

The fourth proportional to 668,398.60, 922,448.37 and 366,650.92 is: 506,010.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,398.60 : 922,448.37 = 366,650.92 : x
  2. Step 2: Convert to fraction form
    668,398.60/922,448.37 = 366,650.92/x
  3. Step 3: Cross multiply
    668,398.60x = 922,448.37 × 366,650.92
  4. Step 4: Simplify right side
    668,398.60x = 338,216,543,513.00
  5. Step 5: Solve for x
    x = 338,216,543,513.00/668,398.60
  6. Step 6: Final answer
    x = 506,010.25

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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.