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Finding the Fourth Proportional to 647,015.85, 892,885.43 and 375,244.90

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Solution

The fourth proportional to 647,015.85, 892,885.43 and 375,244.90 is: 517,840.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,015.85 : 892,885.43 = 375,244.90 : x
  2. Step 2: Convert to fraction form
    647,015.85/892,885.43 = 375,244.90/x
  3. Step 3: Cross multiply
    647,015.85x = 892,885.43 × 375,244.90
  4. Step 4: Simplify right side
    647,015.85x = 335,050,702,597.71
  5. Step 5: Solve for x
    x = 335,050,702,597.71/647,015.85
  6. Step 6: Final answer
    x = 517,840.02

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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.