Home / 1,279,117.24-1,917,663.64-480,309.80

Finding the Fourth Proportional to 1,279,117.24, 1,917,663.64 and 480,309.80

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Solution

The fourth proportional to 1,279,117.24, 1,917,663.64 and 480,309.80 is: 720,084.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,117.24 : 1,917,663.64 = 480,309.80 : x
  2. Step 2: Convert to fraction form
    1,279,117.24/1,917,663.64 = 480,309.80/x
  3. Step 3: Cross multiply
    1,279,117.24x = 1,917,663.64 × 480,309.80
  4. Step 4: Simplify right side
    1,279,117.24x = 921,072,639,395.67
  5. Step 5: Solve for x
    x = 921,072,639,395.67/1,279,117.24
  6. Step 6: Final answer
    x = 720,084.61

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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.