Home / 779,846.40-1,172,102.40-677,203.20

Finding the Fourth Proportional to 779,846.40, 1,172,102.40 and 677,203.20

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Solution

The fourth proportional to 779,846.40, 1,172,102.40 and 677,203.20 is: 1,017,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,846.40 : 1,172,102.40 = 677,203.20 : x
  2. Step 2: Convert to fraction form
    779,846.40/1,172,102.40 = 677,203.20/x
  3. Step 3: Cross multiply
    779,846.40x = 1,172,102.40 × 677,203.20
  4. Step 4: Simplify right side
    779,846.40x = 793,751,496,007.68
  5. Step 5: Solve for x
    x = 793,751,496,007.68/779,846.40
  6. Step 6: Final answer
    x = 1,017,830.56

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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.