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Finding the Fourth Proportional to 630,173.52, 869,628.96 and 343,676.52

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Solution

The fourth proportional to 630,173.52, 869,628.96 and 343,676.52 is: 474,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,173.52 : 869,628.96 = 343,676.52 : x
  2. Step 2: Convert to fraction form
    630,173.52/869,628.96 = 343,676.52/x
  3. Step 3: Cross multiply
    630,173.52x = 869,628.96 × 343,676.52
  4. Step 4: Simplify right side
    630,173.52x = 298,871,054,664.02
  5. Step 5: Solve for x
    x = 298,871,054,664.02/630,173.52
  6. Step 6: Final answer
    x = 474,267.87

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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.