Home / 825,717.93-1,238,279.74-285,827.52

Finding the Fourth Proportional to 825,717.93, 1,238,279.74 and 285,827.52

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Solution

The fourth proportional to 825,717.93, 1,238,279.74 and 285,827.52 is: 428,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,717.93 : 1,238,279.74 = 285,827.52 : x
  2. Step 2: Convert to fraction form
    825,717.93/1,238,279.74 = 285,827.52/x
  3. Step 3: Cross multiply
    825,717.93x = 1,238,279.74 × 285,827.52
  4. Step 4: Simplify right side
    825,717.93x = 353,934,424,114.10
  5. Step 5: Solve for x
    x = 353,934,424,114.10/825,717.93
  6. Step 6: Final answer
    x = 428,638.41

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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.