Home / 1,311,774.36-1,810,048.86-738,778.20

Finding the Fourth Proportional to 1,311,774.36, 1,810,048.86 and 738,778.20

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Solution

The fourth proportional to 1,311,774.36, 1,810,048.86 and 738,778.20 is: 1,019,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,774.36 : 1,810,048.86 = 738,778.20 : x
  2. Step 2: Convert to fraction form
    1,311,774.36/1,810,048.86 = 738,778.20/x
  3. Step 3: Cross multiply
    1,311,774.36x = 1,810,048.86 × 738,778.20
  4. Step 4: Simplify right side
    1,311,774.36x = 1,337,224,638,702.85
  5. Step 5: Solve for x
    x = 1,337,224,638,702.85/1,311,774.36
  6. Step 6: Final answer
    x = 1,019,401.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.