Home / 871,138.32-1,306,872.48-302,497.20

Finding the Fourth Proportional to 871,138.32, 1,306,872.48 and 302,497.20

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Solution

The fourth proportional to 871,138.32, 1,306,872.48 and 302,497.20 is: 453,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,138.32 : 1,306,872.48 = 302,497.20 : x
  2. Step 2: Convert to fraction form
    871,138.32/1,306,872.48 = 302,497.20/x
  3. Step 3: Cross multiply
    871,138.32x = 1,306,872.48 × 302,497.20
  4. Step 4: Simplify right side
    871,138.32x = 395,325,265,957.06
  5. Step 5: Solve for x
    x = 395,325,265,957.06/871,138.32
  6. Step 6: Final answer
    x = 453,803.10

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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.