Home / 990,440.88-1,485,464.40-484,784.64

Finding the Fourth Proportional to 990,440.88, 1,485,464.40 and 484,784.64

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Solution

The fourth proportional to 990,440.88, 1,485,464.40 and 484,784.64 is: 727,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,440.88 : 1,485,464.40 = 484,784.64 : x
  2. Step 2: Convert to fraction form
    990,440.88/1,485,464.40 = 484,784.64/x
  3. Step 3: Cross multiply
    990,440.88x = 1,485,464.40 × 484,784.64
  4. Step 4: Simplify right side
    990,440.88x = 720,130,324,386.82
  5. Step 5: Solve for x
    x = 720,130,324,386.82/990,440.88
  6. Step 6: Final answer
    x = 727,080.57

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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.