Home / 871,003.64-1,305,280.20-692,719.40

Finding the Fourth Proportional to 871,003.64, 1,305,280.20 and 692,719.40

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Solution

The fourth proportional to 871,003.64, 1,305,280.20 and 692,719.40 is: 1,038,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,003.64 : 1,305,280.20 = 692,719.40 : x
  2. Step 2: Convert to fraction form
    871,003.64/1,305,280.20 = 692,719.40/x
  3. Step 3: Cross multiply
    871,003.64x = 1,305,280.20 × 692,719.40
  4. Step 4: Simplify right side
    871,003.64x = 904,192,916,975.88
  5. Step 5: Solve for x
    x = 904,192,916,975.88/871,003.64
  6. Step 6: Final answer
    x = 1,038,104.64

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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.