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Finding the Fourth Proportional to 940.02, 1,410.90 and 632.10

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Solution

The fourth proportional to 940.02, 1,410.90 and 632.10 is: 948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.02 : 1,410.90 = 632.10 : x
  2. Step 2: Convert to fraction form
    940.02/1,410.90 = 632.10/x
  3. Step 3: Cross multiply
    940.02x = 1,410.90 × 632.10
  4. Step 4: Simplify right side
    940.02x = 891,829.89
  5. Step 5: Solve for x
    x = 891,829.89/940.02
  6. Step 6: Final answer
    x = 948.74

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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.