Home / 518,145.58-777,218.37-307,675.18

Finding the Fourth Proportional to 518,145.58, 777,218.37 and 307,675.18

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Solution

The fourth proportional to 518,145.58, 777,218.37 and 307,675.18 is: 461,512.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,145.58 : 777,218.37 = 307,675.18 : x
  2. Step 2: Convert to fraction form
    518,145.58/777,218.37 = 307,675.18/x
  3. Step 3: Cross multiply
    518,145.58x = 777,218.37 × 307,675.18
  4. Step 4: Simplify right side
    518,145.58x = 239,130,796,464.59
  5. Step 5: Solve for x
    x = 239,130,796,464.59/518,145.58
  6. Step 6: Final answer
    x = 461,512.76

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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.