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Finding the Fourth Proportional to 630,362.45, 869,902.22 and 343,888.53

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Solution

The fourth proportional to 630,362.45, 869,902.22 and 343,888.53 is: 474,567.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,362.45 : 869,902.22 = 343,888.53 : x
  2. Step 2: Convert to fraction form
    630,362.45/869,902.22 = 343,888.53/x
  3. Step 3: Cross multiply
    630,362.45x = 869,902.22 × 343,888.53
  4. Step 4: Simplify right side
    630,362.45x = 299,149,395,679.54
  5. Step 5: Solve for x
    x = 299,149,395,679.54/630,362.45
  6. Step 6: Final answer
    x = 474,567.28

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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.