Home / 825,697.07-1,238,248.45-285,806.66

Finding the Fourth Proportional to 825,697.07, 1,238,248.45 and 285,806.66

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Solution

The fourth proportional to 825,697.07, 1,238,248.45 and 285,806.66 is: 428,607.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,697.07 : 1,238,248.45 = 285,806.66 : x
  2. Step 2: Convert to fraction form
    825,697.07/1,238,248.45 = 285,806.66/x
  3. Step 3: Cross multiply
    825,697.07x = 1,238,248.45 × 285,806.66
  4. Step 4: Simplify right side
    825,697.07x = 353,899,646,838.92
  5. Step 5: Solve for x
    x = 353,899,646,838.92/825,697.07
  6. Step 6: Final answer
    x = 428,607.13

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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.