Home / 889,886.37-1,228,035.74-481,978.74

Finding the Fourth Proportional to 889,886.37, 1,228,035.74 and 481,978.74

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Solution

The fourth proportional to 889,886.37, 1,228,035.74 and 481,978.74 is: 665,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,886.37 : 1,228,035.74 = 481,978.74 : x
  2. Step 2: Convert to fraction form
    889,886.37/1,228,035.74 = 481,978.74/x
  3. Step 3: Cross multiply
    889,886.37x = 1,228,035.74 × 481,978.74
  4. Step 4: Simplify right side
    889,886.37x = 591,887,118,640.17
  5. Step 5: Solve for x
    x = 591,887,118,640.17/889,886.37
  6. Step 6: Final answer
    x = 665,126.63

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1.5x scale

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.