Home / 687,723.60-1,030,710.60-331,971.60

Finding the Fourth Proportional to 687,723.60, 1,030,710.60 and 331,971.60

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Solution

The fourth proportional to 687,723.60, 1,030,710.60 and 331,971.60 is: 497,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,723.60 : 1,030,710.60 = 331,971.60 : x
  2. Step 2: Convert to fraction form
    687,723.60/1,030,710.60 = 331,971.60/x
  3. Step 3: Cross multiply
    687,723.60x = 1,030,710.60 × 331,971.60
  4. Step 4: Simplify right side
    687,723.60x = 342,166,647,018.96
  5. Step 5: Solve for x
    x = 342,166,647,018.96/687,723.60
  6. Step 6: Final answer
    x = 497,535.12

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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.