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Finding the Fourth Proportional to 518,633.28, 777,483.04 and 186,131.52

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Solution

The fourth proportional to 518,633.28, 777,483.04 and 186,131.52 is: 279,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,633.28 : 777,483.04 = 186,131.52 : x
  2. Step 2: Convert to fraction form
    518,633.28/777,483.04 = 186,131.52/x
  3. Step 3: Cross multiply
    518,633.28x = 777,483.04 × 186,131.52
  4. Step 4: Simplify right side
    518,633.28x = 144,714,100,009.42
  5. Step 5: Solve for x
    x = 144,714,100,009.42/518,633.28
  6. Step 6: Final answer
    x = 279,029.72

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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.