Home / 817,736.75-1,128,476.77-455,152.83

Finding the Fourth Proportional to 817,736.75, 1,128,476.77 and 455,152.83

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Solution

The fourth proportional to 817,736.75, 1,128,476.77 and 455,152.83 is: 628,110.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,736.75 : 1,128,476.77 = 455,152.83 : x
  2. Step 2: Convert to fraction form
    817,736.75/1,128,476.77 = 455,152.83/x
  3. Step 3: Cross multiply
    817,736.75x = 1,128,476.77 × 455,152.83
  4. Step 4: Simplify right side
    817,736.75x = 513,629,390,085.09
  5. Step 5: Solve for x
    x = 513,629,390,085.09/817,736.75
  6. Step 6: Final answer
    x = 628,110.93

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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.