Home / 1,403,015.65-1,935,720.39-858,583.87

Finding the Fourth Proportional to 1,403,015.65, 1,935,720.39 and 858,583.87

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Solution

The fourth proportional to 1,403,015.65, 1,935,720.39 and 858,583.87 is: 1,184,575.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,015.65 : 1,935,720.39 = 858,583.87 : x
  2. Step 2: Convert to fraction form
    1,403,015.65/1,935,720.39 = 858,583.87/x
  3. Step 3: Cross multiply
    1,403,015.65x = 1,935,720.39 × 858,583.87
  4. Step 4: Simplify right side
    1,403,015.65x = 1,661,978,303,684.11
  5. Step 5: Solve for x
    x = 1,661,978,303,684.11/1,403,015.65
  6. Step 6: Final answer
    x = 1,184,575.74

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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.