Home / 936,131.71-1,291,857.87-506,410.78

Finding the Fourth Proportional to 936,131.71, 1,291,857.87 and 506,410.78

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Solution

The fourth proportional to 936,131.71, 1,291,857.87 and 506,410.78 is: 698,844.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,131.71 : 1,291,857.87 = 506,410.78 : x
  2. Step 2: Convert to fraction form
    936,131.71/1,291,857.87 = 506,410.78/x
  3. Step 3: Cross multiply
    936,131.71x = 1,291,857.87 × 506,410.78
  4. Step 4: Simplify right side
    936,131.71x = 654,210,751,595.84
  5. Step 5: Solve for x
    x = 654,210,751,595.84/936,131.71
  6. Step 6: Final answer
    x = 698,844.77

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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.