Home / 908,900.06-1,254,224.79-500,979.33

Finding the Fourth Proportional to 908,900.06, 1,254,224.79 and 500,979.33

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Solution

The fourth proportional to 908,900.06, 1,254,224.79 and 500,979.33 is: 691,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,900.06 : 1,254,224.79 = 500,979.33 : x
  2. Step 2: Convert to fraction form
    908,900.06/1,254,224.79 = 500,979.33/x
  3. Step 3: Cross multiply
    908,900.06x = 1,254,224.79 × 500,979.33
  4. Step 4: Simplify right side
    908,900.06x = 628,340,694,963.59
  5. Step 5: Solve for x
    x = 628,340,694,963.59/908,900.06
  6. Step 6: Final answer
    x = 691,319.90

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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.