Home / 1,203,081.39-1,660,189.05-686,814.93

Finding the Fourth Proportional to 1,203,081.39, 1,660,189.05 and 686,814.93

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Solution

The fourth proportional to 1,203,081.39, 1,660,189.05 and 686,814.93 is: 947,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,081.39 : 1,660,189.05 = 686,814.93 : x
  2. Step 2: Convert to fraction form
    1,203,081.39/1,660,189.05 = 686,814.93/x
  3. Step 3: Cross multiply
    1,203,081.39x = 1,660,189.05 × 686,814.93
  4. Step 4: Simplify right side
    1,203,081.39x = 1,140,242,626,162.52
  5. Step 5: Solve for x
    x = 1,140,242,626,162.52/1,203,081.39
  6. Step 6: Final answer
    x = 947,768.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.