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Finding the Fourth Proportional to 692,668.62, 955,873.38 and 386,749.74

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Solution

The fourth proportional to 692,668.62, 955,873.38 and 386,749.74 is: 533,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,668.62 : 955,873.38 = 386,749.74 : x
  2. Step 2: Convert to fraction form
    692,668.62/955,873.38 = 386,749.74/x
  3. Step 3: Cross multiply
    692,668.62x = 955,873.38 × 386,749.74
  4. Step 4: Simplify right side
    692,668.62x = 369,683,781,187.92
  5. Step 5: Solve for x
    x = 369,683,781,187.92/692,668.62
  6. Step 6: Final answer
    x = 533,709.44

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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.