Home / 900,884.74-1,243,221.07-492,986.68

Finding the Fourth Proportional to 900,884.74, 1,243,221.07 and 492,986.68

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Solution

The fourth proportional to 900,884.74, 1,243,221.07 and 492,986.68 is: 680,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,884.74 : 1,243,221.07 = 492,986.68 : x
  2. Step 2: Convert to fraction form
    900,884.74/1,243,221.07 = 492,986.68/x
  3. Step 3: Cross multiply
    900,884.74x = 1,243,221.07 × 492,986.68
  4. Step 4: Simplify right side
    900,884.74x = 612,891,427,805.35
  5. Step 5: Solve for x
    x = 612,891,427,805.35/900,884.74
  6. Step 6: Final answer
    x = 680,321.69

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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.