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Finding the Fourth Proportional to 1,699,339.80, 2,549,009.70 and 1,400,741.40

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Solution

The fourth proportional to 1,699,339.80, 2,549,009.70 and 1,400,741.40 is: 2,101,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699,339.80 : 2,549,009.70 = 1,400,741.40 : x
  2. Step 2: Convert to fraction form
    1,699,339.80/2,549,009.70 = 1,400,741.40/x
  3. Step 3: Cross multiply
    1,699,339.80x = 2,549,009.70 × 1,400,741.40
  4. Step 4: Simplify right side
    1,699,339.80x = 3,570,503,415,791.58
  5. Step 5: Solve for x
    x = 3,570,503,415,791.58/1,699,339.80
  6. Step 6: Final answer
    x = 2,101,112.10

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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.