Home / 687,429.52-1,030,898.20-238,029.72

Finding the Fourth Proportional to 687,429.52, 1,030,898.20 and 238,029.72

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Solution

The fourth proportional to 687,429.52, 1,030,898.20 and 238,029.72 is: 356,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,429.52 : 1,030,898.20 = 238,029.72 : x
  2. Step 2: Convert to fraction form
    687,429.52/1,030,898.20 = 238,029.72/x
  3. Step 3: Cross multiply
    687,429.52x = 1,030,898.20 × 238,029.72
  4. Step 4: Simplify right side
    687,429.52x = 245,384,409,894.50
  5. Step 5: Solve for x
    x = 245,384,409,894.50/687,429.52
  6. Step 6: Final answer
    x = 356,959.37

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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.