Home / 840,450.72-1,159,876.80-477,908.31

Finding the Fourth Proportional to 840,450.72, 1,159,876.80 and 477,908.31

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Solution

The fourth proportional to 840,450.72, 1,159,876.80 and 477,908.31 is: 659,544.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,450.72 : 1,159,876.80 = 477,908.31 : x
  2. Step 2: Convert to fraction form
    840,450.72/1,159,876.80 = 477,908.31/x
  3. Step 3: Cross multiply
    840,450.72x = 1,159,876.80 × 477,908.31
  4. Step 4: Simplify right side
    840,450.72x = 554,314,761,296.21
  5. Step 5: Solve for x
    x = 554,314,761,296.21/840,450.72
  6. Step 6: Final answer
    x = 659,544.63

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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.