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Finding the Fourth Proportional to 752,930.64, 1,039,046 and 413,420.72

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Solution

The fourth proportional to 752,930.64, 1,039,046 and 413,420.72 is: 570,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,930.64 : 1,039,046 = 413,420.72 : x
  2. Step 2: Convert to fraction form
    752,930.64/1,039,046 = 413,420.72/x
  3. Step 3: Cross multiply
    752,930.64x = 1,039,046 × 413,420.72
  4. Step 4: Simplify right side
    752,930.64x = 429,563,145,433.12
  5. Step 5: Solve for x
    x = 429,563,145,433.12/752,930.64
  6. Step 6: Final answer
    x = 570,521.54

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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.