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Finding the Fourth Proportional to 572,315.41, 857,328.57 and 344,485.90

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Solution

The fourth proportional to 572,315.41, 857,328.57 and 344,485.90 is: 516,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,315.41 : 857,328.57 = 344,485.90 : x
  2. Step 2: Convert to fraction form
    572,315.41/857,328.57 = 344,485.90/x
  3. Step 3: Cross multiply
    572,315.41x = 857,328.57 × 344,485.90
  4. Step 4: Simplify right side
    572,315.41x = 295,337,599,745.52
  5. Step 5: Solve for x
    x = 295,337,599,745.52/572,315.41
  6. Step 6: Final answer
    x = 516,039.93

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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.