Home / 427,066.12-589,441.35-355,376.26

Finding the Fourth Proportional to 427,066.12, 589,441.35 and 355,376.26

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Solution

The fourth proportional to 427,066.12, 589,441.35 and 355,376.26 is: 490,494.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,066.12 : 589,441.35 = 355,376.26 : x
  2. Step 2: Convert to fraction form
    427,066.12/589,441.35 = 355,376.26/x
  3. Step 3: Cross multiply
    427,066.12x = 589,441.35 × 355,376.26
  4. Step 4: Simplify right side
    427,066.12x = 209,473,462,452.35
  5. Step 5: Solve for x
    x = 209,473,462,452.35/427,066.12
  6. Step 6: Final answer
    x = 490,494.22

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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.