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Finding the Fourth Proportional to 630,657.54, 870,309.84 and 344,184

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Solution

The fourth proportional to 630,657.54, 870,309.84 and 344,184 is: 474,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,657.54 : 870,309.84 = 344,184 : x
  2. Step 2: Convert to fraction form
    630,657.54/870,309.84 = 344,184/x
  3. Step 3: Cross multiply
    630,657.54x = 870,309.84 × 344,184
  4. Step 4: Simplify right side
    630,657.54x = 299,546,721,970.56
  5. Step 5: Solve for x
    x = 299,546,721,970.56/630,657.54
  6. Step 6: Final answer
    x = 474,975.25

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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.