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Finding the Fourth Proportional to 445,970.36, 615,950.37 and 293,689.55

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Solution

The fourth proportional to 445,970.36, 615,950.37 and 293,689.55 is: 405,628.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,970.36 : 615,950.37 = 293,689.55 : x
  2. Step 2: Convert to fraction form
    445,970.36/615,950.37 = 293,689.55/x
  3. Step 3: Cross multiply
    445,970.36x = 615,950.37 × 293,689.55
  4. Step 4: Simplify right side
    445,970.36x = 180,898,183,907.88
  5. Step 5: Solve for x
    x = 180,898,183,907.88/445,970.36
  6. Step 6: Final answer
    x = 405,628.27

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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.