Home / 657,311.60-985,967.40-325,535.60

Finding the Fourth Proportional to 657,311.60, 985,967.40 and 325,535.60

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Solution

The fourth proportional to 657,311.60, 985,967.40 and 325,535.60 is: 488,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,311.60 : 985,967.40 = 325,535.60 : x
  2. Step 2: Convert to fraction form
    657,311.60/985,967.40 = 325,535.60/x
  3. Step 3: Cross multiply
    657,311.60x = 985,967.40 × 325,535.60
  4. Step 4: Simplify right side
    657,311.60x = 320,967,489,139.44
  5. Step 5: Solve for x
    x = 320,967,489,139.44/657,311.60
  6. Step 6: Final answer
    x = 488,303.40

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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.