Home / 1,209,004.93-1,668,426.78-665,129.04

Finding the Fourth Proportional to 1,209,004.93, 1,668,426.78 and 665,129.04

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Solution

The fourth proportional to 1,209,004.93, 1,668,426.78 and 665,129.04 is: 917,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,004.93 : 1,668,426.78 = 665,129.04 : x
  2. Step 2: Convert to fraction form
    1,209,004.93/1,668,426.78 = 665,129.04/x
  3. Step 3: Cross multiply
    1,209,004.93x = 1,668,426.78 × 665,129.04
  4. Step 4: Simplify right side
    1,209,004.93x = 1,109,719,102,491.69
  5. Step 5: Solve for x
    x = 1,109,719,102,491.69/1,209,004.93
  6. Step 6: Final answer
    x = 917,878.06

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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.