Home / 613,984.67-919,276.61-313,818.92

Finding the Fourth Proportional to 613,984.67, 919,276.61 and 313,818.92

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Solution

The fourth proportional to 613,984.67, 919,276.61 and 313,818.92 is: 469,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,984.67 : 919,276.61 = 313,818.92 : x
  2. Step 2: Convert to fraction form
    613,984.67/919,276.61 = 313,818.92/x
  3. Step 3: Cross multiply
    613,984.67x = 919,276.61 × 313,818.92
  4. Step 4: Simplify right side
    613,984.67x = 288,486,386,765.98
  5. Step 5: Solve for x
    x = 288,486,386,765.98/613,984.67
  6. Step 6: Final answer
    x = 469,859.27

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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.