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Finding the Fourth Proportional to 630,652.54, 870,302.94 and 344,179

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Solution

The fourth proportional to 630,652.54, 870,302.94 and 344,179 is: 474,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,652.54 : 870,302.94 = 344,179 : x
  2. Step 2: Convert to fraction form
    630,652.54/870,302.94 = 344,179/x
  3. Step 3: Cross multiply
    630,652.54x = 870,302.94 × 344,179
  4. Step 4: Simplify right side
    630,652.54x = 299,539,995,586.26
  5. Step 5: Solve for x
    x = 299,539,995,586.26/630,652.54
  6. Step 6: Final answer
    x = 474,968.35

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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.