Home / 403,764.04-556,867.20-355,261.24

Finding the Fourth Proportional to 403,764.04, 556,867.20 and 355,261.24

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Solution

The fourth proportional to 403,764.04, 556,867.20 and 355,261.24 is: 489,972.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,764.04 : 556,867.20 = 355,261.24 : x
  2. Step 2: Convert to fraction form
    403,764.04/556,867.20 = 355,261.24/x
  3. Step 3: Cross multiply
    403,764.04x = 556,867.20 × 355,261.24
  4. Step 4: Simplify right side
    403,764.04x = 197,833,331,987.33
  5. Step 5: Solve for x
    x = 197,833,331,987.33/403,764.04
  6. Step 6: Final answer
    x = 489,972.64

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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.