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Finding the Fourth Proportional to 508,346.52, 701,536.86 and 307,103.64

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Solution

The fourth proportional to 508,346.52, 701,536.86 and 307,103.64 is: 423,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,346.52 : 701,536.86 = 307,103.64 : x
  2. Step 2: Convert to fraction form
    508,346.52/701,536.86 = 307,103.64/x
  3. Step 3: Cross multiply
    508,346.52x = 701,536.86 × 307,103.64
  4. Step 4: Simplify right side
    508,346.52x = 215,444,523,300.17
  5. Step 5: Solve for x
    x = 215,444,523,300.17/508,346.52
  6. Step 6: Final answer
    x = 423,814.30

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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.