Home / 668,346.80-1,002,615.53-218,971.60

Finding the Fourth Proportional to 668,346.80, 1,002,615.53 and 218,971.60

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Solution

The fourth proportional to 668,346.80, 1,002,615.53 and 218,971.60 is: 328,488.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,346.80 : 1,002,615.53 = 218,971.60 : x
  2. Step 2: Convert to fraction form
    668,346.80/1,002,615.53 = 218,971.60/x
  3. Step 3: Cross multiply
    668,346.80x = 1,002,615.53 × 218,971.60
  4. Step 4: Simplify right side
    668,346.80x = 219,544,323,187.55
  5. Step 5: Solve for x
    x = 219,544,323,187.55/668,346.80
  6. Step 6: Final answer
    x = 328,488.63

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1.5x scale

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.