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Finding the Fourth Proportional to 720,054.92, 1,080,078.47 and 293,589.08

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Solution

The fourth proportional to 720,054.92, 1,080,078.47 and 293,589.08 is: 440,382.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,054.92 : 1,080,078.47 = 293,589.08 : x
  2. Step 2: Convert to fraction form
    720,054.92/1,080,078.47 = 293,589.08/x
  3. Step 3: Cross multiply
    720,054.92x = 1,080,078.47 × 293,589.08
  4. Step 4: Simplify right side
    720,054.92x = 317,099,242,867.16
  5. Step 5: Solve for x
    x = 317,099,242,867.16/720,054.92
  6. Step 6: Final answer
    x = 440,382.03

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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.