Home / 1,230,619.82-1,698,255.69-679,335.98

Finding the Fourth Proportional to 1,230,619.82, 1,698,255.69 and 679,335.98

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Solution

The fourth proportional to 1,230,619.82, 1,698,255.69 and 679,335.98 is: 937,483.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,619.82 : 1,698,255.69 = 679,335.98 : x
  2. Step 2: Convert to fraction form
    1,230,619.82/1,698,255.69 = 679,335.98/x
  3. Step 3: Cross multiply
    1,230,619.82x = 1,698,255.69 × 679,335.98
  4. Step 4: Simplify right side
    1,230,619.82x = 1,153,686,193,456.73
  5. Step 5: Solve for x
    x = 1,153,686,193,456.73/1,230,619.82
  6. Step 6: Final answer
    x = 937,483.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.