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Finding the Fourth Proportional to 518,993.76, 716,195.07 and 304,276.80

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Solution

The fourth proportional to 518,993.76, 716,195.07 and 304,276.80 is: 419,892.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,993.76 : 716,195.07 = 304,276.80 : x
  2. Step 2: Convert to fraction form
    518,993.76/716,195.07 = 304,276.80/x
  3. Step 3: Cross multiply
    518,993.76x = 716,195.07 × 304,276.80
  4. Step 4: Simplify right side
    518,993.76x = 217,921,544,075.38
  5. Step 5: Solve for x
    x = 217,921,544,075.38/518,993.76
  6. Step 6: Final answer
    x = 419,892.42

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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.