Home / 1,443,022.41-1,991,054.91-862,158.39

Finding the Fourth Proportional to 1,443,022.41, 1,991,054.91 and 862,158.39

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Solution

The fourth proportional to 1,443,022.41, 1,991,054.91 and 862,158.39 is: 1,189,589.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,022.41 : 1,991,054.91 = 862,158.39 : x
  2. Step 2: Convert to fraction form
    1,443,022.41/1,991,054.91 = 862,158.39/x
  3. Step 3: Cross multiply
    1,443,022.41x = 1,991,054.91 × 862,158.39
  4. Step 4: Simplify right side
    1,443,022.41x = 1,716,604,695,607.19
  5. Step 5: Solve for x
    x = 1,716,604,695,607.19/1,443,022.41
  6. Step 6: Final answer
    x = 1,189,589.77

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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.