Home / 815,763.89-1,125,255.38-484,395.26

Finding the Fourth Proportional to 815,763.89, 1,125,255.38 and 484,395.26

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Solution

The fourth proportional to 815,763.89, 1,125,255.38 and 484,395.26 is: 668,169.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,763.89 : 1,125,255.38 = 484,395.26 : x
  2. Step 2: Convert to fraction form
    815,763.89/1,125,255.38 = 484,395.26/x
  3. Step 3: Cross multiply
    815,763.89x = 1,125,255.38 × 484,395.26
  4. Step 4: Simplify right side
    815,763.89x = 545,068,364,313.25
  5. Step 5: Solve for x
    x = 545,068,364,313.25/815,763.89
  6. Step 6: Final answer
    x = 668,169.27

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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.