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Finding the Fourth Proportional to 518,824.59, 778,473.34 and 266,282.42

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Solution

The fourth proportional to 518,824.59, 778,473.34 and 266,282.42 is: 399,544.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,824.59 : 778,473.34 = 266,282.42 : x
  2. Step 2: Convert to fraction form
    518,824.59/778,473.34 = 266,282.42/x
  3. Step 3: Cross multiply
    518,824.59x = 778,473.34 × 266,282.42
  4. Step 4: Simplify right side
    518,824.59x = 207,293,763,246.66
  5. Step 5: Solve for x
    x = 207,293,763,246.66/518,824.59
  6. Step 6: Final answer
    x = 399,544.98

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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.