Home / 788,247.78-1,087,959.12-516,157.64

Finding the Fourth Proportional to 788,247.78, 1,087,959.12 and 516,157.64

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Solution

The fourth proportional to 788,247.78, 1,087,959.12 and 516,157.64 is: 712,413.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,247.78 : 1,087,959.12 = 516,157.64 : x
  2. Step 2: Convert to fraction form
    788,247.78/1,087,959.12 = 516,157.64/x
  3. Step 3: Cross multiply
    788,247.78x = 1,087,959.12 × 516,157.64
  4. Step 4: Simplify right side
    788,247.78x = 561,558,406,355.88
  5. Step 5: Solve for x
    x = 561,558,406,355.88/788,247.78
  6. Step 6: Final answer
    x = 712,413.56

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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.