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Finding the Fourth Proportional to 536,632.08, 803,619.47 and 394,139.44

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Solution

The fourth proportional to 536,632.08, 803,619.47 and 394,139.44 is: 590,233.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,632.08 : 803,619.47 = 394,139.44 : x
  2. Step 2: Convert to fraction form
    536,632.08/803,619.47 = 394,139.44/x
  3. Step 3: Cross multiply
    536,632.08x = 803,619.47 × 394,139.44
  4. Step 4: Simplify right side
    536,632.08x = 316,738,127,878.90
  5. Step 5: Solve for x
    x = 316,738,127,878.90/536,632.08
  6. Step 6: Final answer
    x = 590,233.31

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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.