Home / 1,284,180.87-1,772,269.33-711,274.35

Finding the Fourth Proportional to 1,284,180.87, 1,772,269.33 and 711,274.35

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Solution

The fourth proportional to 1,284,180.87, 1,772,269.33 and 711,274.35 is: 981,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,180.87 : 1,772,269.33 = 711,274.35 : x
  2. Step 2: Convert to fraction form
    1,284,180.87/1,772,269.33 = 711,274.35/x
  3. Step 3: Cross multiply
    1,284,180.87x = 1,772,269.33 × 711,274.35
  4. Step 4: Simplify right side
    1,284,180.87x = 1,260,569,715,720.69
  5. Step 5: Solve for x
    x = 1,260,569,715,720.69/1,284,180.87
  6. Step 6: Final answer
    x = 981,613.84

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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.