Home / 878,681.37-1,317,548.11-398,647.23

Finding the Fourth Proportional to 878,681.37, 1,317,548.11 and 398,647.23

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Solution

The fourth proportional to 878,681.37, 1,317,548.11 and 398,647.23 is: 597,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,681.37 : 1,317,548.11 = 398,647.23 : x
  2. Step 2: Convert to fraction form
    878,681.37/1,317,548.11 = 398,647.23/x
  3. Step 3: Cross multiply
    878,681.37x = 1,317,548.11 × 398,647.23
  4. Step 4: Simplify right side
    878,681.37x = 525,236,902,958.88
  5. Step 5: Solve for x
    x = 525,236,902,958.88/878,681.37
  6. Step 6: Final answer
    x = 597,755.82

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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.