Home / 999,865.88-1,379,809.32-540,979.28

Finding the Fourth Proportional to 999,865.88, 1,379,809.32 and 540,979.28

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Solution

The fourth proportional to 999,865.88, 1,379,809.32 and 540,979.28 is: 746,548.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,865.88 : 1,379,809.32 = 540,979.28 : x
  2. Step 2: Convert to fraction form
    999,865.88/1,379,809.32 = 540,979.28/x
  3. Step 3: Cross multiply
    999,865.88x = 1,379,809.32 × 540,979.28
  4. Step 4: Simplify right side
    999,865.88x = 746,448,252,470.89
  5. Step 5: Solve for x
    x = 746,448,252,470.89/999,865.88
  6. Step 6: Final answer
    x = 746,548.38

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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.