Home / 989,995.50-1,366,193.79-537,286.50

Finding the Fourth Proportional to 989,995.50, 1,366,193.79 and 537,286.50

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Solution

The fourth proportional to 989,995.50, 1,366,193.79 and 537,286.50 is: 741,455.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,995.50 : 1,366,193.79 = 537,286.50 : x
  2. Step 2: Convert to fraction form
    989,995.50/1,366,193.79 = 537,286.50/x
  3. Step 3: Cross multiply
    989,995.50x = 1,366,193.79 × 537,286.50
  4. Step 4: Simplify right side
    989,995.50x = 734,037,479,750.84
  5. Step 5: Solve for x
    x = 734,037,479,750.84/989,995.50
  6. Step 6: Final answer
    x = 741,455.37

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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.