Home / 293,645.20-440,467.80-288,979.60

Finding the Fourth Proportional to 293,645.20, 440,467.80 and 288,979.60

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Solution

The fourth proportional to 293,645.20, 440,467.80 and 288,979.60 is: 433,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,645.20 : 440,467.80 = 288,979.60 : x
  2. Step 2: Convert to fraction form
    293,645.20/440,467.80 = 288,979.60/x
  3. Step 3: Cross multiply
    293,645.20x = 440,467.80 × 288,979.60
  4. Step 4: Simplify right side
    293,645.20x = 127,286,208,656.88
  5. Step 5: Solve for x
    x = 127,286,208,656.88/293,645.20
  6. Step 6: Final answer
    x = 433,469.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.