Home / 936,509.07-1,292,382.51-506,789.20

Finding the Fourth Proportional to 936,509.07, 1,292,382.51 and 506,789.20

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Solution

The fourth proportional to 936,509.07, 1,292,382.51 and 506,789.20 is: 699,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,509.07 : 1,292,382.51 = 506,789.20 : x
  2. Step 2: Convert to fraction form
    936,509.07/1,292,382.51 = 506,789.20/x
  3. Step 3: Cross multiply
    936,509.07x = 1,292,382.51 × 506,789.20
  4. Step 4: Simplify right side
    936,509.07x = 654,965,494,082.83
  5. Step 5: Solve for x
    x = 654,965,494,082.83/936,509.07
  6. Step 6: Final answer
    x = 699,369.09

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1.5x scale

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.