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Finding the Fourth Proportional to 518,922.48, 716,096.78 and 304,205.55

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Solution

The fourth proportional to 518,922.48, 716,096.78 and 304,205.55 is: 419,794.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,922.48 : 716,096.78 = 304,205.55 : x
  2. Step 2: Convert to fraction form
    518,922.48/716,096.78 = 304,205.55/x
  3. Step 3: Cross multiply
    518,922.48x = 716,096.78 × 304,205.55
  4. Step 4: Simplify right side
    518,922.48x = 217,840,613,292.10
  5. Step 5: Solve for x
    x = 217,840,613,292.10/518,922.48
  6. Step 6: Final answer
    x = 419,794.13

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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.