Home / 1,291,555.12-1,937,313.20-581,081.44

Finding the Fourth Proportional to 1,291,555.12, 1,937,313.20 and 581,081.44

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Solution

The fourth proportional to 1,291,555.12, 1,937,313.20 and 581,081.44 is: 871,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,555.12 : 1,937,313.20 = 581,081.44 : x
  2. Step 2: Convert to fraction form
    1,291,555.12/1,937,313.20 = 581,081.44/x
  3. Step 3: Cross multiply
    1,291,555.12x = 1,937,313.20 × 581,081.44
  4. Step 4: Simplify right side
    1,291,555.12x = 1,125,736,743,987.01
  5. Step 5: Solve for x
    x = 1,125,736,743,987.01/1,291,555.12
  6. Step 6: Final answer
    x = 871,613.40

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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.