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Finding the Fourth Proportional to 518,907.84, 778,119.84 and 269,522.88

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Solution

The fourth proportional to 518,907.84, 778,119.84 and 269,522.88 is: 404,158.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,907.84 : 778,119.84 = 269,522.88 : x
  2. Step 2: Convert to fraction form
    518,907.84/778,119.84 = 269,522.88/x
  3. Step 3: Cross multiply
    518,907.84x = 778,119.84 × 269,522.88
  4. Step 4: Simplify right side
    518,907.84x = 209,721,100,261.94
  5. Step 5: Solve for x
    x = 209,721,100,261.94/518,907.84
  6. Step 6: Final answer
    x = 404,158.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.