Home / 771,728.06-1,157,592.77-322,203.88

Finding the Fourth Proportional to 771,728.06, 1,157,592.77 and 322,203.88

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Solution

The fourth proportional to 771,728.06, 1,157,592.77 and 322,203.88 is: 483,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,728.06 : 1,157,592.77 = 322,203.88 : x
  2. Step 2: Convert to fraction form
    771,728.06/1,157,592.77 = 322,203.88/x
  3. Step 3: Cross multiply
    771,728.06x = 1,157,592.77 × 322,203.88
  4. Step 4: Simplify right side
    771,728.06x = 372,980,876,486.72
  5. Step 5: Solve for x
    x = 372,980,876,486.72/771,728.06
  6. Step 6: Final answer
    x = 483,306.10

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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.