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Finding the Fourth Proportional to 630,311.07, 869,823.73 and 343,825.01

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Solution

The fourth proportional to 630,311.07, 869,823.73 and 343,825.01 is: 474,475.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,311.07 : 869,823.73 = 343,825.01 : x
  2. Step 2: Convert to fraction form
    630,311.07/869,823.73 = 343,825.01/x
  3. Step 3: Cross multiply
    630,311.07x = 869,823.73 × 343,825.01
  4. Step 4: Simplify right side
    630,311.07x = 299,067,152,665.49
  5. Step 5: Solve for x
    x = 299,067,152,665.49/630,311.07
  6. Step 6: Final answer
    x = 474,475.49

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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.