Home / 901,815.75-1,244,544.86-499,407.75

Finding the Fourth Proportional to 901,815.75, 1,244,544.86 and 499,407.75

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Solution

The fourth proportional to 901,815.75, 1,244,544.86 and 499,407.75 is: 689,204.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,815.75 : 1,244,544.86 = 499,407.75 : x
  2. Step 2: Convert to fraction form
    901,815.75/1,244,544.86 = 499,407.75/x
  3. Step 3: Cross multiply
    901,815.75x = 1,244,544.86 × 499,407.75
  4. Step 4: Simplify right side
    901,815.75x = 621,535,345,809.63
  5. Step 5: Solve for x
    x = 621,535,345,809.63/901,815.75
  6. Step 6: Final answer
    x = 689,204.36

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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.