Home / 955.04-1,432.64-407.36

Finding the Fourth Proportional to 955.04, 1,432.64 and 407.36

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Solution

The fourth proportional to 955.04, 1,432.64 and 407.36 is: 611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.04 : 1,432.64 = 407.36 : x
  2. Step 2: Convert to fraction form
    955.04/1,432.64 = 407.36/x
  3. Step 3: Cross multiply
    955.04x = 1,432.64 × 407.36
  4. Step 4: Simplify right side
    955.04x = 583,600.23
  5. Step 5: Solve for x
    x = 583,600.23/955.04
  6. Step 6: Final answer
    x = 611.07

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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.