Home / 1,440,243.25-2,159,889.93-480,434.36

Finding the Fourth Proportional to 1,440,243.25, 2,159,889.93 and 480,434.36

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Solution

The fourth proportional to 1,440,243.25, 2,159,889.93 and 480,434.36 is: 720,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,243.25 : 2,159,889.93 = 480,434.36 : x
  2. Step 2: Convert to fraction form
    1,440,243.25/2,159,889.93 = 480,434.36/x
  3. Step 3: Cross multiply
    1,440,243.25x = 2,159,889.93 × 480,434.36
  4. Step 4: Simplify right side
    1,440,243.25x = 1,037,685,325,390.55
  5. Step 5: Solve for x
    x = 1,037,685,325,390.55/1,440,243.25
  6. Step 6: Final answer
    x = 720,493.10

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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.