Home / 1,404,772.80-2,106,945.36-458,142

Finding the Fourth Proportional to 1,404,772.80, 2,106,945.36 and 458,142

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Solution

The fourth proportional to 1,404,772.80, 2,106,945.36 and 458,142 is: 687,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,772.80 : 2,106,945.36 = 458,142 : x
  2. Step 2: Convert to fraction form
    1,404,772.80/2,106,945.36 = 458,142/x
  3. Step 3: Cross multiply
    1,404,772.80x = 2,106,945.36 × 458,142
  4. Step 4: Simplify right side
    1,404,772.80x = 965,280,161,121.12
  5. Step 5: Solve for x
    x = 965,280,161,121.12/1,404,772.80
  6. Step 6: Final answer
    x = 687,143.26

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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.