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Finding the Fourth Proportional to 611,120.72, 915,352.44 and 373,745.36

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Solution

The fourth proportional to 611,120.72, 915,352.44 and 373,745.36 is: 559,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,120.72 : 915,352.44 = 373,745.36 : x
  2. Step 2: Convert to fraction form
    611,120.72/915,352.44 = 373,745.36/x
  3. Step 3: Cross multiply
    611,120.72x = 915,352.44 × 373,745.36
  4. Step 4: Simplify right side
    611,120.72x = 342,108,727,214.68
  5. Step 5: Solve for x
    x = 342,108,727,214.68/611,120.72
  6. Step 6: Final answer
    x = 559,805.48

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1.5x scale

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.