Home / 684,784.64-1,026,620.22-285,722.66

Finding the Fourth Proportional to 684,784.64, 1,026,620.22 and 285,722.66

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Solution

The fourth proportional to 684,784.64, 1,026,620.22 and 285,722.66 is: 428,351.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,784.64 : 1,026,620.22 = 285,722.66 : x
  2. Step 2: Convert to fraction form
    684,784.64/1,026,620.22 = 285,722.66/x
  3. Step 3: Cross multiply
    684,784.64x = 1,026,620.22 × 285,722.66
  4. Step 4: Simplify right side
    684,784.64x = 293,328,660,068.19
  5. Step 5: Solve for x
    x = 293,328,660,068.19/684,784.64
  6. Step 6: Final answer
    x = 428,351.69

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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.