Home / 1,242,533.95-1,863,832.63-343,983.43

Finding the Fourth Proportional to 1,242,533.95, 1,863,832.63 and 343,983.43

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Solution

The fourth proportional to 1,242,533.95, 1,863,832.63 and 343,983.43 is: 515,983.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,533.95 : 1,863,832.63 = 343,983.43 : x
  2. Step 2: Convert to fraction form
    1,242,533.95/1,863,832.63 = 343,983.43/x
  3. Step 3: Cross multiply
    1,242,533.95x = 1,863,832.63 × 343,983.43
  4. Step 4: Simplify right side
    1,242,533.95x = 641,127,548,370.15
  5. Step 5: Solve for x
    x = 641,127,548,370.15/1,242,533.95
  6. Step 6: Final answer
    x = 515,983.93

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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.