Home / 1,421,300.36-1,961,742.98-809,813.94

Finding the Fourth Proportional to 1,421,300.36, 1,961,742.98 and 809,813.94

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Solution

The fourth proportional to 1,421,300.36, 1,961,742.98 and 809,813.94 is: 1,117,741.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,300.36 : 1,961,742.98 = 809,813.94 : x
  2. Step 2: Convert to fraction form
    1,421,300.36/1,961,742.98 = 809,813.94/x
  3. Step 3: Cross multiply
    1,421,300.36x = 1,961,742.98 × 809,813.94
  4. Step 4: Simplify right side
    1,421,300.36x = 1,588,646,811,901.14
  5. Step 5: Solve for x
    x = 1,588,646,811,901.14/1,421,300.36
  6. Step 6: Final answer
    x = 1,117,741.79

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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.