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Finding the Fourth Proportional to 642,108.44, 886,107.43 and 370,175.04

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Solution

The fourth proportional to 642,108.44, 886,107.43 and 370,175.04 is: 510,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,108.44 : 886,107.43 = 370,175.04 : x
  2. Step 2: Convert to fraction form
    642,108.44/886,107.43 = 370,175.04/x
  3. Step 3: Cross multiply
    642,108.44x = 886,107.43 × 370,175.04
  4. Step 4: Simplify right side
    642,108.44x = 328,014,853,807.27
  5. Step 5: Solve for x
    x = 328,014,853,807.27/642,108.44
  6. Step 6: Final answer
    x = 510,840.28

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1.5x scale

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.