Home / 687,233.13-1,029,797.46-287,656.35

Finding the Fourth Proportional to 687,233.13, 1,029,797.46 and 287,656.35

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Solution

The fourth proportional to 687,233.13, 1,029,797.46 and 287,656.35 is: 431,044.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,233.13 : 1,029,797.46 = 287,656.35 : x
  2. Step 2: Convert to fraction form
    687,233.13/1,029,797.46 = 287,656.35/x
  3. Step 3: Cross multiply
    687,233.13x = 1,029,797.46 × 287,656.35
  4. Step 4: Simplify right side
    687,233.13x = 296,227,778,582.87
  5. Step 5: Solve for x
    x = 296,227,778,582.87/687,233.13
  6. Step 6: Final answer
    x = 431,044.09

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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.