Home / 692,125.60-1,038,188.40-271,415.20

Finding the Fourth Proportional to 692,125.60, 1,038,188.40 and 271,415.20

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Solution

The fourth proportional to 692,125.60, 1,038,188.40 and 271,415.20 is: 407,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,125.60 : 1,038,188.40 = 271,415.20 : x
  2. Step 2: Convert to fraction form
    692,125.60/1,038,188.40 = 271,415.20/x
  3. Step 3: Cross multiply
    692,125.60x = 1,038,188.40 × 271,415.20
  4. Step 4: Simplify right side
    692,125.60x = 281,780,112,223.68
  5. Step 5: Solve for x
    x = 281,780,112,223.68/692,125.60
  6. Step 6: Final answer
    x = 407,122.80

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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.