Home / 817,744.26-1,128,487.13-455,160.35

Finding the Fourth Proportional to 817,744.26, 1,128,487.13 and 455,160.35

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Solution

The fourth proportional to 817,744.26, 1,128,487.13 and 455,160.35 is: 628,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,744.26 : 1,128,487.13 = 455,160.35 : x
  2. Step 2: Convert to fraction form
    817,744.26/1,128,487.13 = 455,160.35/x
  3. Step 3: Cross multiply
    817,744.26x = 1,128,487.13 × 455,160.35
  4. Step 4: Simplify right side
    817,744.26x = 513,642,589,143.06
  5. Step 5: Solve for x
    x = 513,642,589,143.06/817,744.26
  6. Step 6: Final answer
    x = 628,121.30

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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.