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Finding the Fourth Proportional to 508,976.87, 702,186.77 and 294,077.39

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Solution

The fourth proportional to 508,976.87, 702,186.77 and 294,077.39 is: 405,710.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,976.87 : 702,186.77 = 294,077.39 : x
  2. Step 2: Convert to fraction form
    508,976.87/702,186.77 = 294,077.39/x
  3. Step 3: Cross multiply
    508,976.87x = 702,186.77 × 294,077.39
  4. Step 4: Simplify right side
    508,976.87x = 206,497,249,838.39
  5. Step 5: Solve for x
    x = 206,497,249,838.39/508,976.87
  6. Step 6: Final answer
    x = 405,710.48

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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.