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Finding the Fourth Proportional to 630,838.44, 870,544.26 and 344,357.64

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Solution

The fourth proportional to 630,838.44, 870,544.26 and 344,357.64 is: 475,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,838.44 : 870,544.26 = 344,357.64 : x
  2. Step 2: Convert to fraction form
    630,838.44/870,544.26 = 344,357.64/x
  3. Step 3: Cross multiply
    630,838.44x = 870,544.26 × 344,357.64
  4. Step 4: Simplify right side
    630,838.44x = 299,778,566,889.15
  5. Step 5: Solve for x
    x = 299,778,566,889.15/630,838.44
  6. Step 6: Final answer
    x = 475,206.56

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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.