Home / 1,037,940.40-1,556,910.60-289,985.20

Finding the Fourth Proportional to 1,037,940.40, 1,556,910.60 and 289,985.20

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Solution

The fourth proportional to 1,037,940.40, 1,556,910.60 and 289,985.20 is: 434,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037,940.40 : 1,556,910.60 = 289,985.20 : x
  2. Step 2: Convert to fraction form
    1,037,940.40/1,556,910.60 = 289,985.20/x
  3. Step 3: Cross multiply
    1,037,940.40x = 1,556,910.60 × 289,985.20
  4. Step 4: Simplify right side
    1,037,940.40x = 451,481,031,723.12
  5. Step 5: Solve for x
    x = 451,481,031,723.12/1,037,940.40
  6. Step 6: Final answer
    x = 434,977.80

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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.