Home / 1,080,579.40-1,618,730.70-947,609.80

Finding the Fourth Proportional to 1,080,579.40, 1,618,730.70 and 947,609.80

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Solution

The fourth proportional to 1,080,579.40, 1,618,730.70 and 947,609.80 is: 1,419,539.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,579.40 : 1,618,730.70 = 947,609.80 : x
  2. Step 2: Convert to fraction form
    1,080,579.40/1,618,730.70 = 947,609.80/x
  3. Step 3: Cross multiply
    1,080,579.40x = 1,618,730.70 × 947,609.80
  4. Step 4: Simplify right side
    1,080,579.40x = 1,533,925,074,880.86
  5. Step 5: Solve for x
    x = 1,533,925,074,880.86/1,080,579.40
  6. Step 6: Final answer
    x = 1,419,539.44

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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.