Home / 1,242,442.50-1,863,705.42-343,809.06

Finding the Fourth Proportional to 1,242,442.50, 1,863,705.42 and 343,809.06

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Solution

The fourth proportional to 1,242,442.50, 1,863,705.42 and 343,809.06 is: 515,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,442.50 : 1,863,705.42 = 343,809.06 : x
  2. Step 2: Convert to fraction form
    1,242,442.50/1,863,705.42 = 343,809.06/x
  3. Step 3: Cross multiply
    1,242,442.50x = 1,863,705.42 × 343,809.06
  4. Step 4: Simplify right side
    1,242,442.50x = 640,758,808,567.11
  5. Step 5: Solve for x
    x = 640,758,808,567.11/1,242,442.50
  6. Step 6: Final answer
    x = 515,725.12

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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.