Home / 630,299.63-869,819.78-343,825.72

Finding the Fourth Proportional to 630,299.63, 869,819.78 and 343,825.72

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Solution

The fourth proportional to 630,299.63, 869,819.78 and 343,825.72 is: 474,482.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,299.63 : 869,819.78 = 343,825.72 : x
  2. Step 2: Convert to fraction form
    630,299.63/869,819.78 = 343,825.72/x
  3. Step 3: Cross multiply
    630,299.63x = 869,819.78 × 343,825.72
  4. Step 4: Simplify right side
    630,299.63x = 299,066,410,813.76
  5. Step 5: Solve for x
    x = 299,066,410,813.76/630,299.63
  6. Step 6: Final answer
    x = 474,482.92

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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.