Home / 624,288.18-861,054.26-379,271.73

Finding the Fourth Proportional to 624,288.18, 861,054.26 and 379,271.73

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Solution

The fourth proportional to 624,288.18, 861,054.26 and 379,271.73 is: 523,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,288.18 : 861,054.26 = 379,271.73 : x
  2. Step 2: Convert to fraction form
    624,288.18/861,054.26 = 379,271.73/x
  3. Step 3: Cross multiply
    624,288.18x = 861,054.26 × 379,271.73
  4. Step 4: Simplify right side
    624,288.18x = 326,573,536,917.71
  5. Step 5: Solve for x
    x = 326,573,536,917.71/624,288.18
  6. Step 6: Final answer
    x = 523,113.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.