Home / 936,509.78-1,292,383.49-506,789.91

Finding the Fourth Proportional to 936,509.78, 1,292,383.49 and 506,789.91

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Solution

The fourth proportional to 936,509.78, 1,292,383.49 and 506,789.91 is: 699,370.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,509.78 : 1,292,383.49 = 506,789.91 : x
  2. Step 2: Convert to fraction form
    936,509.78/1,292,383.49 = 506,789.91/x
  3. Step 3: Cross multiply
    936,509.78x = 1,292,383.49 × 506,789.91
  4. Step 4: Simplify right side
    936,509.78x = 654,966,912,039.54
  5. Step 5: Solve for x
    x = 654,966,912,039.54/936,509.78
  6. Step 6: Final answer
    x = 699,370.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.