Home / 1,276,903.51-1,914,938.48-423,745.97

Finding the Fourth Proportional to 1,276,903.51, 1,914,938.48 and 423,745.97

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Solution

The fourth proportional to 1,276,903.51, 1,914,938.48 and 423,745.97 is: 635,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,903.51 : 1,914,938.48 = 423,745.97 : x
  2. Step 2: Convert to fraction form
    1,276,903.51/1,914,938.48 = 423,745.97/x
  3. Step 3: Cross multiply
    1,276,903.51x = 1,914,938.48 × 423,745.97
  4. Step 4: Simplify right side
    1,276,903.51x = 811,447,455,182.60
  5. Step 5: Solve for x
    x = 811,447,455,182.60/1,276,903.51
  6. Step 6: Final answer
    x = 635,480.64

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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.