Home / 989,835.78-1,365,976.98-537,126.78

Finding the Fourth Proportional to 989,835.78, 1,365,976.98 and 537,126.78

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Solution

The fourth proportional to 989,835.78, 1,365,976.98 and 537,126.78 is: 741,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,835.78 : 1,365,976.98 = 537,126.78 : x
  2. Step 2: Convert to fraction form
    989,835.78/1,365,976.98 = 537,126.78/x
  3. Step 3: Cross multiply
    989,835.78x = 1,365,976.98 × 537,126.78
  4. Step 4: Simplify right side
    989,835.78x = 733,702,816,821.52
  5. Step 5: Solve for x
    x = 733,702,816,821.52/989,835.78
  6. Step 6: Final answer
    x = 741,236.91

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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.