Home / 989,811.72-1,365,943.92-537,102.72

Finding the Fourth Proportional to 989,811.72, 1,365,943.92 and 537,102.72

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Solution

The fourth proportional to 989,811.72, 1,365,943.92 and 537,102.72 is: 741,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,811.72 : 1,365,943.92 = 537,102.72 : x
  2. Step 2: Convert to fraction form
    989,811.72/1,365,943.92 = 537,102.72/x
  3. Step 3: Cross multiply
    989,811.72x = 1,365,943.92 × 537,102.72
  4. Step 4: Simplify right side
    989,811.72x = 733,652,194,799.46
  5. Step 5: Solve for x
    x = 733,652,194,799.46/989,811.72
  6. Step 6: Final answer
    x = 741,203.79

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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.