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Finding the Fourth Proportional to 446,661.36, 670,060.08 and 278,045.28

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Solution

The fourth proportional to 446,661.36, 670,060.08 and 278,045.28 is: 417,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,661.36 : 670,060.08 = 278,045.28 : x
  2. Step 2: Convert to fraction form
    446,661.36/670,060.08 = 278,045.28/x
  3. Step 3: Cross multiply
    446,661.36x = 670,060.08 × 278,045.28
  4. Step 4: Simplify right side
    446,661.36x = 186,307,042,560.42
  5. Step 5: Solve for x
    x = 186,307,042,560.42/446,661.36
  6. Step 6: Final answer
    x = 417,110.27

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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.