Home / 1,159,142.20-1,737,486.14-389,907.60

Finding the Fourth Proportional to 1,159,142.20, 1,737,486.14 and 389,907.60

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Solution

The fourth proportional to 1,159,142.20, 1,737,486.14 and 389,907.60 is: 584,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,142.20 : 1,737,486.14 = 389,907.60 : x
  2. Step 2: Convert to fraction form
    1,159,142.20/1,737,486.14 = 389,907.60/x
  3. Step 3: Cross multiply
    1,159,142.20x = 1,737,486.14 × 389,907.60
  4. Step 4: Simplify right side
    1,159,142.20x = 677,459,050,880.66
  5. Step 5: Solve for x
    x = 677,459,050,880.66/1,159,142.20
  6. Step 6: Final answer
    x = 584,448.61

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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.