Home / 864,468.13-1,297,615.26-485,712.55

Finding the Fourth Proportional to 864,468.13, 1,297,615.26 and 485,712.55

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Solution

The fourth proportional to 864,468.13, 1,297,615.26 and 485,712.55 is: 729,081.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,468.13 : 1,297,615.26 = 485,712.55 : x
  2. Step 2: Convert to fraction form
    864,468.13/1,297,615.26 = 485,712.55/x
  3. Step 3: Cross multiply
    864,468.13x = 1,297,615.26 × 485,712.55
  4. Step 4: Simplify right side
    864,468.13x = 630,268,016,853.51
  5. Step 5: Solve for x
    x = 630,268,016,853.51/864,468.13
  6. Step 6: Final answer
    x = 729,081.84

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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.