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Finding the Fourth Proportional to 668,531.16, 922,518.18 and 366,725.16

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Solution

The fourth proportional to 668,531.16, 922,518.18 and 366,725.16 is: 506,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,531.16 : 922,518.18 = 366,725.16 : x
  2. Step 2: Convert to fraction form
    668,531.16/922,518.18 = 366,725.16/x
  3. Step 3: Cross multiply
    668,531.16x = 922,518.18 × 366,725.16
  4. Step 4: Simplify right side
    668,531.16x = 338,310,627,163.41
  5. Step 5: Solve for x
    x = 338,310,627,163.41/668,531.16
  6. Step 6: Final answer
    x = 506,050.65

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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.