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Finding the Fourth Proportional to 518,607.66, 777,402.86 and 248,659.28

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Solution

The fourth proportional to 518,607.66, 777,402.86 and 248,659.28 is: 372,745.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,607.66 : 777,402.86 = 248,659.28 : x
  2. Step 2: Convert to fraction form
    518,607.66/777,402.86 = 248,659.28/x
  3. Step 3: Cross multiply
    518,607.66x = 777,402.86 × 248,659.28
  4. Step 4: Simplify right side
    518,607.66x = 193,308,430,307.23
  5. Step 5: Solve for x
    x = 193,308,430,307.23/518,607.66
  6. Step 6: Final answer
    x = 372,745.03

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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.