Home / 1,379,905.52-1,903,640.28-997,326.32

Finding the Fourth Proportional to 1,379,905.52, 1,903,640.28 and 997,326.32

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Solution

The fourth proportional to 1,379,905.52, 1,903,640.28 and 997,326.32 is: 1,375,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,905.52 : 1,903,640.28 = 997,326.32 : x
  2. Step 2: Convert to fraction form
    1,379,905.52/1,903,640.28 = 997,326.32/x
  3. Step 3: Cross multiply
    1,379,905.52x = 1,903,640.28 × 997,326.32
  4. Step 4: Simplify right side
    1,379,905.52x = 1,898,550,555,056.17
  5. Step 5: Solve for x
    x = 1,898,550,555,056.17/1,379,905.52
  6. Step 6: Final answer
    x = 1,375,855.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.