Home / 613,295.20-919,942.80-313,676.20

Finding the Fourth Proportional to 613,295.20, 919,942.80 and 313,676.20

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Solution

The fourth proportional to 613,295.20, 919,942.80 and 313,676.20 is: 470,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,295.20 : 919,942.80 = 313,676.20 : x
  2. Step 2: Convert to fraction form
    613,295.20/919,942.80 = 313,676.20/x
  3. Step 3: Cross multiply
    613,295.20x = 919,942.80 × 313,676.20
  4. Step 4: Simplify right side
    613,295.20x = 288,564,161,721.36
  5. Step 5: Solve for x
    x = 288,564,161,721.36/613,295.20
  6. Step 6: Final answer
    x = 470,514.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.