Home / 1,078,745.40-1,615,007.70-658,841.40

Finding the Fourth Proportional to 1,078,745.40, 1,615,007.70 and 658,841.40

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Solution

The fourth proportional to 1,078,745.40, 1,615,007.70 and 658,841.40 is: 986,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,745.40 : 1,615,007.70 = 658,841.40 : x
  2. Step 2: Convert to fraction form
    1,078,745.40/1,615,007.70 = 658,841.40/x
  3. Step 3: Cross multiply
    1,078,745.40x = 1,615,007.70 × 658,841.40
  4. Step 4: Simplify right side
    1,078,745.40x = 1,064,033,934,078.78
  5. Step 5: Solve for x
    x = 1,064,033,934,078.78/1,078,745.40
  6. Step 6: Final answer
    x = 986,362.43

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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.