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Finding the Fourth Proportional to 617,745.60, 925,840.80 and 547,761.60

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Solution

The fourth proportional to 617,745.60, 925,840.80 and 547,761.60 is: 820,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,745.60 : 925,840.80 = 547,761.60 : x
  2. Step 2: Convert to fraction form
    617,745.60/925,840.80 = 547,761.60/x
  3. Step 3: Cross multiply
    617,745.60x = 925,840.80 × 547,761.60
  4. Step 4: Simplify right side
    617,745.60x = 507,140,037,953.28
  5. Step 5: Solve for x
    x = 507,140,037,953.28/617,745.60
  6. Step 6: Final answer
    x = 820,952.89

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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.