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Finding the Fourth Proportional to 570,762.56, 787,650.36 and 329,043.98

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Solution

The fourth proportional to 570,762.56, 787,650.36 and 329,043.98 is: 454,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,762.56 : 787,650.36 = 329,043.98 : x
  2. Step 2: Convert to fraction form
    570,762.56/787,650.36 = 329,043.98/x
  3. Step 3: Cross multiply
    570,762.56x = 787,650.36 × 329,043.98
  4. Step 4: Simplify right side
    570,762.56x = 259,171,609,302.83
  5. Step 5: Solve for x
    x = 259,171,609,302.83/570,762.56
  6. Step 6: Final answer
    x = 454,079.56

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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.