Home / 999,046.05-1,378,809.82-655,171.28

Finding the Fourth Proportional to 999,046.05, 1,378,809.82 and 655,171.28

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Solution

The fourth proportional to 999,046.05, 1,378,809.82 and 655,171.28 is: 904,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,046.05 : 1,378,809.82 = 655,171.28 : x
  2. Step 2: Convert to fraction form
    999,046.05/1,378,809.82 = 655,171.28/x
  3. Step 3: Cross multiply
    999,046.05x = 1,378,809.82 × 655,171.28
  4. Step 4: Simplify right side
    999,046.05x = 903,356,591,370.11
  5. Step 5: Solve for x
    x = 903,356,591,370.11/999,046.05
  6. Step 6: Final answer
    x = 904,219.17

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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.