Home / 684,782.60-1,026,617.24-285,720.71

Finding the Fourth Proportional to 684,782.60, 1,026,617.24 and 285,720.71

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Solution

The fourth proportional to 684,782.60, 1,026,617.24 and 285,720.71 is: 428,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,782.60 : 1,026,617.24 = 285,720.71 : x
  2. Step 2: Convert to fraction form
    684,782.60/1,026,617.24 = 285,720.71/x
  3. Step 3: Cross multiply
    684,782.60x = 1,026,617.24 × 285,720.71
  4. Step 4: Simplify right side
    684,782.60x = 293,325,802,292.26
  5. Step 5: Solve for x
    x = 293,325,802,292.26/684,782.60
  6. Step 6: Final answer
    x = 428,348.80

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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.