Home / 1,269,220.40-1,903,837.20-427,779.44

Finding the Fourth Proportional to 1,269,220.40, 1,903,837.20 and 427,779.44

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Solution

The fourth proportional to 1,269,220.40, 1,903,837.20 and 427,779.44 is: 641,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,220.40 : 1,903,837.20 = 427,779.44 : x
  2. Step 2: Convert to fraction form
    1,269,220.40/1,903,837.20 = 427,779.44/x
  3. Step 3: Cross multiply
    1,269,220.40x = 1,903,837.20 × 427,779.44
  4. Step 4: Simplify right side
    1,269,220.40x = 814,422,411,267.17
  5. Step 5: Solve for x
    x = 814,422,411,267.17/1,269,220.40
  6. Step 6: Final answer
    x = 641,671.38

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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.