Home / 630,218.62-869,712.06-343,738.72

Finding the Fourth Proportional to 630,218.62, 869,712.06 and 343,738.72

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Solution

The fourth proportional to 630,218.62, 869,712.06 and 343,738.72 is: 474,365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,218.62 : 869,712.06 = 343,738.72 : x
  2. Step 2: Convert to fraction form
    630,218.62/869,712.06 = 343,738.72/x
  3. Step 3: Cross multiply
    630,218.62x = 869,712.06 × 343,738.72
  4. Step 4: Simplify right side
    630,218.62x = 298,953,710,272.96
  5. Step 5: Solve for x
    x = 298,953,710,272.96/630,218.62
  6. Step 6: Final answer
    x = 474,365.09

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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.