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Finding the Fourth Proportional to 957.64, 1,437.14 and 410.21

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Solution

The fourth proportional to 957.64, 1,437.14 and 410.21 is: 615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.64 : 1,437.14 = 410.21 : x
  2. Step 2: Convert to fraction form
    957.64/1,437.14 = 410.21/x
  3. Step 3: Cross multiply
    957.64x = 1,437.14 × 410.21
  4. Step 4: Simplify right side
    957.64x = 589,527.15
  5. Step 5: Solve for x
    x = 589,527.15/957.64
  6. Step 6: Final answer
    x = 615.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.