Home / 684,782.64-1,026,617.22-285,720.66

Finding the Fourth Proportional to 684,782.64, 1,026,617.22 and 285,720.66

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Solution

The fourth proportional to 684,782.64, 1,026,617.22 and 285,720.66 is: 428,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,782.64 : 1,026,617.22 = 285,720.66 : x
  2. Step 2: Convert to fraction form
    684,782.64/1,026,617.22 = 285,720.66/x
  3. Step 3: Cross multiply
    684,782.64x = 1,026,617.22 × 285,720.66
  4. Step 4: Simplify right side
    684,782.64x = 293,325,749,665.77
  5. Step 5: Solve for x
    x = 293,325,749,665.77/684,782.64
  6. Step 6: Final answer
    x = 428,348.69

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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.