Home / 1,080,581.40-1,618,733.70-947,611.80

Finding the Fourth Proportional to 1,080,581.40, 1,618,733.70 and 947,611.80

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Solution

The fourth proportional to 1,080,581.40, 1,618,733.70 and 947,611.80 is: 1,419,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,581.40 : 1,618,733.70 = 947,611.80 : x
  2. Step 2: Convert to fraction form
    1,080,581.40/1,618,733.70 = 947,611.80/x
  3. Step 3: Cross multiply
    1,080,581.40x = 1,618,733.70 × 947,611.80
  4. Step 4: Simplify right side
    1,080,581.40x = 1,533,931,155,177.66
  5. Step 5: Solve for x
    x = 1,533,931,155,177.66/1,080,581.40
  6. Step 6: Final answer
    x = 1,419,542.44

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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.