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Finding the Fourth Proportional to 518,985.66, 716,183.98 and 304,268.74

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Solution

The fourth proportional to 518,985.66, 716,183.98 and 304,268.74 is: 419,881.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,985.66 : 716,183.98 = 304,268.74 : x
  2. Step 2: Convert to fraction form
    518,985.66/716,183.98 = 304,268.74/x
  3. Step 3: Cross multiply
    518,985.66x = 716,183.98 × 304,268.74
  4. Step 4: Simplify right side
    518,985.66x = 217,912,394,651.65
  5. Step 5: Solve for x
    x = 217,912,394,651.65/518,985.66
  6. Step 6: Final answer
    x = 419,881.34

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1.5x scale

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.