Home / 936,139.27-1,291,867.82-506,415.64

Finding the Fourth Proportional to 936,139.27, 1,291,867.82 and 506,415.64

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Solution

The fourth proportional to 936,139.27, 1,291,867.82 and 506,415.64 is: 698,851.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,139.27 : 1,291,867.82 = 506,415.64 : x
  2. Step 2: Convert to fraction form
    936,139.27/1,291,867.82 = 506,415.64/x
  3. Step 3: Cross multiply
    936,139.27x = 1,291,867.82 × 506,415.64
  4. Step 4: Simplify right side
    936,139.27x = 654,222,066,328.63
  5. Step 5: Solve for x
    x = 654,222,066,328.63/936,139.27
  6. Step 6: Final answer
    x = 698,851.22

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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.