Home / 986,914.31-1,362,157.70-624,820.95

Finding the Fourth Proportional to 986,914.31, 1,362,157.70 and 624,820.95

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Solution

The fourth proportional to 986,914.31, 1,362,157.70 and 624,820.95 is: 862,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,914.31 : 1,362,157.70 = 624,820.95 : x
  2. Step 2: Convert to fraction form
    986,914.31/1,362,157.70 = 624,820.95/x
  3. Step 3: Cross multiply
    986,914.31x = 1,362,157.70 × 624,820.95
  4. Step 4: Simplify right side
    986,914.31x = 851,104,665,039.71
  5. Step 5: Solve for x
    x = 851,104,665,039.71/986,914.31
  6. Step 6: Final answer
    x = 862,389.63

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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.