Home / 1,159,138.58-1,737,480.70-389,904

Finding the Fourth Proportional to 1,159,138.58, 1,737,480.70 and 389,904

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Solution

The fourth proportional to 1,159,138.58, 1,737,480.70 and 389,904 is: 584,443.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,138.58 : 1,737,480.70 = 389,904 : x
  2. Step 2: Convert to fraction form
    1,159,138.58/1,737,480.70 = 389,904/x
  3. Step 3: Cross multiply
    1,159,138.58x = 1,737,480.70 × 389,904
  4. Step 4: Simplify right side
    1,159,138.58x = 677,450,674,852.80
  5. Step 5: Solve for x
    x = 677,450,674,852.80/1,159,138.58
  6. Step 6: Final answer
    x = 584,443.21

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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.