Home / 578,990.88-799,009.29-320,872.05

Finding the Fourth Proportional to 578,990.88, 799,009.29 and 320,872.05

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Solution

The fourth proportional to 578,990.88, 799,009.29 and 320,872.05 is: 442,804.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,990.88 : 799,009.29 = 320,872.05 : x
  2. Step 2: Convert to fraction form
    578,990.88/799,009.29 = 320,872.05/x
  3. Step 3: Cross multiply
    578,990.88x = 799,009.29 × 320,872.05
  4. Step 4: Simplify right side
    578,990.88x = 256,379,748,851.35
  5. Step 5: Solve for x
    x = 256,379,748,851.35/578,990.88
  6. Step 6: Final answer
    x = 442,804.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.