Home / 1,242,372.15-1,863,303.08-343,588.05

Finding the Fourth Proportional to 1,242,372.15, 1,863,303.08 and 343,588.05

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Solution

The fourth proportional to 1,242,372.15, 1,863,303.08 and 343,588.05 is: 515,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,372.15 : 1,863,303.08 = 343,588.05 : x
  2. Step 2: Convert to fraction form
    1,242,372.15/1,863,303.08 = 343,588.05/x
  3. Step 3: Cross multiply
    1,242,372.15x = 1,863,303.08 × 343,588.05
  4. Step 4: Simplify right side
    1,242,372.15x = 640,208,670,098.25
  5. Step 5: Solve for x
    x = 640,208,670,098.25/1,242,372.15
  6. Step 6: Final answer
    x = 515,311.51

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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.