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Finding the Fourth Proportional to 476,400.87, 714,584.30 and 121,411.89

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Solution

The fourth proportional to 476,400.87, 714,584.30 and 121,411.89 is: 182,113.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,400.87 : 714,584.30 = 121,411.89 : x
  2. Step 2: Convert to fraction form
    476,400.87/714,584.30 = 121,411.89/x
  3. Step 3: Cross multiply
    476,400.87x = 714,584.30 × 121,411.89
  4. Step 4: Simplify right side
    476,400.87x = 86,759,029,820.27
  5. Step 5: Solve for x
    x = 86,759,029,820.27/476,400.87
  6. Step 6: Final answer
    x = 182,113.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.