Home / 899,015.13-1,240,625.22-491,106.49

Finding the Fourth Proportional to 899,015.13, 1,240,625.22 and 491,106.49

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Solution

The fourth proportional to 899,015.13, 1,240,625.22 and 491,106.49 is: 677,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,015.13 : 1,240,625.22 = 491,106.49 : x
  2. Step 2: Convert to fraction form
    899,015.13/1,240,625.22 = 491,106.49/x
  3. Step 3: Cross multiply
    899,015.13x = 1,240,625.22 × 491,106.49
  4. Step 4: Simplify right side
    899,015.13x = 609,279,097,199.68
  5. Step 5: Solve for x
    x = 609,279,097,199.68/899,015.13
  6. Step 6: Final answer
    x = 677,718.40

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Double scale
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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.