Home / 789,112.68-1,088,973.36-449,583.36

Finding the Fourth Proportional to 789,112.68, 1,088,973.36 and 449,583.36

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Solution

The fourth proportional to 789,112.68, 1,088,973.36 and 449,583.36 is: 620,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,112.68 : 1,088,973.36 = 449,583.36 : x
  2. Step 2: Convert to fraction form
    789,112.68/1,088,973.36 = 449,583.36/x
  3. Step 3: Cross multiply
    789,112.68x = 1,088,973.36 × 449,583.36
  4. Step 4: Simplify right side
    789,112.68x = 489,584,302,139.29
  5. Step 5: Solve for x
    x = 489,584,302,139.29/789,112.68
  6. Step 6: Final answer
    x = 620,423.82

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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.