Home / 1,269,178.36-1,903,774.02-427,737.40

Finding the Fourth Proportional to 1,269,178.36, 1,903,774.02 and 427,737.40

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Solution

The fourth proportional to 1,269,178.36, 1,903,774.02 and 427,737.40 is: 641,608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,178.36 : 1,903,774.02 = 427,737.40 : x
  2. Step 2: Convert to fraction form
    1,269,178.36/1,903,774.02 = 427,737.40/x
  3. Step 3: Cross multiply
    1,269,178.36x = 1,903,774.02 × 427,737.40
  4. Step 4: Simplify right side
    1,269,178.36x = 814,315,343,138.90
  5. Step 5: Solve for x
    x = 814,315,343,138.90/1,269,178.36
  6. Step 6: Final answer
    x = 641,608.28

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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.