Home / 490,720.01-677,196.45-275,858.19

Finding the Fourth Proportional to 490,720.01, 677,196.45 and 275,858.19

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Solution

The fourth proportional to 490,720.01, 677,196.45 and 275,858.19 is: 380,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,720.01 : 677,196.45 = 275,858.19 : x
  2. Step 2: Convert to fraction form
    490,720.01/677,196.45 = 275,858.19/x
  3. Step 3: Cross multiply
    490,720.01x = 677,196.45 × 275,858.19
  4. Step 4: Simplify right side
    490,720.01x = 186,810,186,971.43
  5. Step 5: Solve for x
    x = 186,810,186,971.43/490,720.01
  6. Step 6: Final answer
    x = 380,685.90

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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.