Home / 899,189.96-1,240,867.49-491,283.03

Finding the Fourth Proportional to 899,189.96, 1,240,867.49 and 491,283.03

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Solution

The fourth proportional to 899,189.96, 1,240,867.49 and 491,283.03 is: 677,962.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,189.96 : 1,240,867.49 = 491,283.03 : x
  2. Step 2: Convert to fraction form
    899,189.96/1,240,867.49 = 491,283.03/x
  3. Step 3: Cross multiply
    899,189.96x = 1,240,867.49 × 491,283.03
  4. Step 4: Simplify right side
    899,189.96x = 609,617,137,859.28
  5. Step 5: Solve for x
    x = 609,617,137,859.28/899,189.96
  6. Step 6: Final answer
    x = 677,962.57

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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.