Home / 1,237,647.82-1,707,923.16-686,360.32

Finding the Fourth Proportional to 1,237,647.82, 1,707,923.16 and 686,360.32

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Solution

The fourth proportional to 1,237,647.82, 1,707,923.16 and 686,360.32 is: 947,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,647.82 : 1,707,923.16 = 686,360.32 : x
  2. Step 2: Convert to fraction form
    1,237,647.82/1,707,923.16 = 686,360.32/x
  3. Step 3: Cross multiply
    1,237,647.82x = 1,707,923.16 × 686,360.32
  4. Step 4: Simplify right side
    1,237,647.82x = 1,172,250,686,633.01
  5. Step 5: Solve for x
    x = 1,172,250,686,633.01/1,237,647.82
  6. Step 6: Final answer
    x = 947,160.14

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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.