Home / 1,139,176.32-1,705,614.72-857,840.64

Finding the Fourth Proportional to 1,139,176.32, 1,705,614.72 and 857,840.64

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Solution

The fourth proportional to 1,139,176.32, 1,705,614.72 and 857,840.64 is: 1,284,389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,176.32 : 1,705,614.72 = 857,840.64 : x
  2. Step 2: Convert to fraction form
    1,139,176.32/1,705,614.72 = 857,840.64/x
  3. Step 3: Cross multiply
    1,139,176.32x = 1,705,614.72 × 857,840.64
  4. Step 4: Simplify right side
    1,139,176.32x = 1,463,145,622,998.22
  5. Step 5: Solve for x
    x = 1,463,145,622,998.22/1,139,176.32
  6. Step 6: Final answer
    x = 1,284,389.08

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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.