Home / 909,893.56-1,255,623.78-496,415.56

Finding the Fourth Proportional to 909,893.56, 1,255,623.78 and 496,415.56

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Solution

The fourth proportional to 909,893.56, 1,255,623.78 and 496,415.56 is: 685,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,893.56 : 1,255,623.78 = 496,415.56 : x
  2. Step 2: Convert to fraction form
    909,893.56/1,255,623.78 = 496,415.56/x
  3. Step 3: Cross multiply
    909,893.56x = 1,255,623.78 × 496,415.56
  4. Step 4: Simplify right side
    909,893.56x = 623,311,181,898.02
  5. Step 5: Solve for x
    x = 623,311,181,898.02/909,893.56
  6. Step 6: Final answer
    x = 685,037.47

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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.