Home / 913,826.86-1,370,887.17-314,640.70

Finding the Fourth Proportional to 913,826.86, 1,370,887.17 and 314,640.70

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Solution

The fourth proportional to 913,826.86, 1,370,887.17 and 314,640.70 is: 472,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,826.86 : 1,370,887.17 = 314,640.70 : x
  2. Step 2: Convert to fraction form
    913,826.86/1,370,887.17 = 314,640.70/x
  3. Step 3: Cross multiply
    913,826.86x = 1,370,887.17 × 314,640.70
  4. Step 4: Simplify right side
    913,826.86x = 431,336,898,789.82
  5. Step 5: Solve for x
    x = 431,336,898,789.82/913,826.86
  6. Step 6: Final answer
    x = 472,011.62

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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.