Home / 1,191,809.54-1,644,729.60-647,981.94

Finding the Fourth Proportional to 1,191,809.54, 1,644,729.60 and 647,981.94

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Solution

The fourth proportional to 1,191,809.54, 1,644,729.60 and 647,981.94 is: 894,232.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,809.54 : 1,644,729.60 = 647,981.94 : x
  2. Step 2: Convert to fraction form
    1,191,809.54/1,644,729.60 = 647,981.94/x
  3. Step 3: Cross multiply
    1,191,809.54x = 1,644,729.60 × 647,981.94
  4. Step 4: Simplify right side
    1,191,809.54x = 1,065,755,076,983.42
  5. Step 5: Solve for x
    x = 1,065,755,076,983.42/1,191,809.54
  6. Step 6: Final answer
    x = 894,232.71

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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.