Home / 810,579.52-1,118,564.94-447,984.64

Finding the Fourth Proportional to 810,579.52, 1,118,564.94 and 447,984.64

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Solution

The fourth proportional to 810,579.52, 1,118,564.94 and 447,984.64 is: 618,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,579.52 : 1,118,564.94 = 447,984.64 : x
  2. Step 2: Convert to fraction form
    810,579.52/1,118,564.94 = 447,984.64/x
  3. Step 3: Cross multiply
    810,579.52x = 1,118,564.94 × 447,984.64
  4. Step 4: Simplify right side
    810,579.52x = 501,099,911,962.52
  5. Step 5: Solve for x
    x = 501,099,911,962.52/810,579.52
  6. Step 6: Final answer
    x = 618,199.57

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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.