Home / 1,026,668.49-1,540,155.87-427,288.38

Finding the Fourth Proportional to 1,026,668.49, 1,540,155.87 and 427,288.38

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Solution

The fourth proportional to 1,026,668.49, 1,540,155.87 and 427,288.38 is: 640,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,668.49 : 1,540,155.87 = 427,288.38 : x
  2. Step 2: Convert to fraction form
    1,026,668.49/1,540,155.87 = 427,288.38/x
  3. Step 3: Cross multiply
    1,026,668.49x = 1,540,155.87 × 427,288.38
  4. Step 4: Simplify right side
    1,026,668.49x = 658,090,706,639.79
  5. Step 5: Solve for x
    x = 658,090,706,639.79/1,026,668.49
  6. Step 6: Final answer
    x = 640,996.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.