Home / 899,759.49-1,241,668.17-491,863.15

Finding the Fourth Proportional to 899,759.49, 1,241,668.17 and 491,863.15

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Solution

The fourth proportional to 899,759.49, 1,241,668.17 and 491,863.15 is: 678,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,759.49 : 1,241,668.17 = 491,863.15 : x
  2. Step 2: Convert to fraction form
    899,759.49/1,241,668.17 = 491,863.15/x
  3. Step 3: Cross multiply
    899,759.49x = 1,241,668.17 × 491,863.15
  4. Step 4: Simplify right side
    899,759.49x = 610,730,817,350.94
  5. Step 5: Solve for x
    x = 610,730,817,350.94/899,759.49
  6. Step 6: Final answer
    x = 678,771.19

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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.