Home / 705,803.16-1,058,109.42-306,142.88

Finding the Fourth Proportional to 705,803.16, 1,058,109.42 and 306,142.88

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Solution

The fourth proportional to 705,803.16, 1,058,109.42 and 306,142.88 is: 458,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,803.16 : 1,058,109.42 = 306,142.88 : x
  2. Step 2: Convert to fraction form
    705,803.16/1,058,109.42 = 306,142.88/x
  3. Step 3: Cross multiply
    705,803.16x = 1,058,109.42 × 306,142.88
  4. Step 4: Simplify right side
    705,803.16x = 323,932,665,193.93
  5. Step 5: Solve for x
    x = 323,932,665,193.93/705,803.16
  6. Step 6: Final answer
    x = 458,956.10

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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.