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Finding the Fourth Proportional to 907.64, 1,360.48 and 650.36

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Solution

The fourth proportional to 907.64, 1,360.48 and 650.36 is: 974.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.64 : 1,360.48 = 650.36 : x
  2. Step 2: Convert to fraction form
    907.64/1,360.48 = 650.36/x
  3. Step 3: Cross multiply
    907.64x = 1,360.48 × 650.36
  4. Step 4: Simplify right side
    907.64x = 884,801.77
  5. Step 5: Solve for x
    x = 884,801.77/907.64
  6. Step 6: Final answer
    x = 974.84

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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.