Home / 613,983.92-919,275.48-313,818.17

Finding the Fourth Proportional to 613,983.92, 919,275.48 and 313,818.17

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Solution

The fourth proportional to 613,983.92, 919,275.48 and 313,818.17 is: 469,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,983.92 : 919,275.48 = 313,818.17 : x
  2. Step 2: Convert to fraction form
    613,983.92/919,275.48 = 313,818.17/x
  3. Step 3: Cross multiply
    613,983.92x = 919,275.48 × 313,818.17
  4. Step 4: Simplify right side
    613,983.92x = 288,485,344,263.09
  5. Step 5: Solve for x
    x = 288,485,344,263.09/613,983.92
  6. Step 6: Final answer
    x = 469,858.15

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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.