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Finding the Fourth Proportional to 647,041.08, 892,920.18 and 375,270

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Solution

The fourth proportional to 647,041.08, 892,920.18 and 375,270 is: 517,874.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,041.08 : 892,920.18 = 375,270 : x
  2. Step 2: Convert to fraction form
    647,041.08/892,920.18 = 375,270/x
  3. Step 3: Cross multiply
    647,041.08x = 892,920.18 × 375,270
  4. Step 4: Simplify right side
    647,041.08x = 335,086,155,948.60
  5. Step 5: Solve for x
    x = 335,086,155,948.60/647,041.08
  6. Step 6: Final answer
    x = 517,874.62

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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.