Home / 989,832.78-1,365,972.84-537,123.78

Finding the Fourth Proportional to 989,832.78, 1,365,972.84 and 537,123.78

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Solution

The fourth proportional to 989,832.78, 1,365,972.84 and 537,123.78 is: 741,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,832.78 : 1,365,972.84 = 537,123.78 : x
  2. Step 2: Convert to fraction form
    989,832.78/1,365,972.84 = 537,123.78/x
  3. Step 3: Cross multiply
    989,832.78x = 1,365,972.84 × 537,123.78
  4. Step 4: Simplify right side
    989,832.78x = 733,696,495,198.14
  5. Step 5: Solve for x
    x = 733,696,495,198.14/989,832.78
  6. Step 6: Final answer
    x = 741,232.77

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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.