Home / 890,447.76-1,228,943.88-551,025.36

Finding the Fourth Proportional to 890,447.76, 1,228,943.88 and 551,025.36

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Solution

The fourth proportional to 890,447.76, 1,228,943.88 and 551,025.36 is: 760,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,447.76 : 1,228,943.88 = 551,025.36 : x
  2. Step 2: Convert to fraction form
    890,447.76/1,228,943.88 = 551,025.36/x
  3. Step 3: Cross multiply
    890,447.76x = 1,228,943.88 × 551,025.36
  4. Step 4: Simplify right side
    890,447.76x = 677,179,243,896.80
  5. Step 5: Solve for x
    x = 677,179,243,896.80/890,447.76
  6. Step 6: Final answer
    x = 760,492.95

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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.