Home / 1,128,114.44-1,691,329.98-678,730.04

Finding the Fourth Proportional to 1,128,114.44, 1,691,329.98 and 678,730.04

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Solution

The fourth proportional to 1,128,114.44, 1,691,329.98 and 678,730.04 is: 1,017,588.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,114.44 : 1,691,329.98 = 678,730.04 : x
  2. Step 2: Convert to fraction form
    1,128,114.44/1,691,329.98 = 678,730.04/x
  3. Step 3: Cross multiply
    1,128,114.44x = 1,691,329.98 × 678,730.04
  4. Step 4: Simplify right side
    1,128,114.44x = 1,147,956,464,978.60
  5. Step 5: Solve for x
    x = 1,147,956,464,978.60/1,128,114.44
  6. Step 6: Final answer
    x = 1,017,588.66

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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.