Home / 518,985.54-716,183.80-304,268.61

Finding the Fourth Proportional to 518,985.54, 716,183.80 and 304,268.61

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Solution

The fourth proportional to 518,985.54, 716,183.80 and 304,268.61 is: 419,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,985.54 : 716,183.80 = 304,268.61 : x
  2. Step 2: Convert to fraction form
    518,985.54/716,183.80 = 304,268.61/x
  3. Step 3: Cross multiply
    518,985.54x = 716,183.80 × 304,268.61
  4. Step 4: Simplify right side
    518,985.54x = 217,912,249,330.52
  5. Step 5: Solve for x
    x = 217,912,249,330.52/518,985.54
  6. Step 6: Final answer
    x = 419,881.16

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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.