Home / 987,889.32-1,362,786.18-624,701.16

Finding the Fourth Proportional to 987,889.32, 1,362,786.18 and 624,701.16

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Solution

The fourth proportional to 987,889.32, 1,362,786.18 and 624,701.16 is: 861,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,889.32 : 1,362,786.18 = 624,701.16 : x
  2. Step 2: Convert to fraction form
    987,889.32/1,362,786.18 = 624,701.16/x
  3. Step 3: Cross multiply
    987,889.32x = 1,362,786.18 × 624,701.16
  4. Step 4: Simplify right side
    987,889.32x = 851,334,107,477.97
  5. Step 5: Solve for x
    x = 851,334,107,477.97/987,889.32
  6. Step 6: Final answer
    x = 861,770.74

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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.