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Finding the Fourth Proportional to 714,671.71, 1,070,999.71 and 394,967.54

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Solution

The fourth proportional to 714,671.71, 1,070,999.71 and 394,967.54 is: 591,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,671.71 : 1,070,999.71 = 394,967.54 : x
  2. Step 2: Convert to fraction form
    714,671.71/1,070,999.71 = 394,967.54/x
  3. Step 3: Cross multiply
    714,671.71x = 1,070,999.71 × 394,967.54
  4. Step 4: Simplify right side
    714,671.71x = 423,010,122,489.49
  5. Step 5: Solve for x
    x = 423,010,122,489.49/714,671.71
  6. Step 6: Final answer
    x = 591,894.32

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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.