Home / 1,412,916.57-1,949,876.06-809,421.21

Finding the Fourth Proportional to 1,412,916.57, 1,949,876.06 and 809,421.21

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Solution

The fourth proportional to 1,412,916.57, 1,949,876.06 and 809,421.21 is: 1,117,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,916.57 : 1,949,876.06 = 809,421.21 : x
  2. Step 2: Convert to fraction form
    1,412,916.57/1,949,876.06 = 809,421.21/x
  3. Step 3: Cross multiply
    1,412,916.57x = 1,949,876.06 × 809,421.21
  4. Step 4: Simplify right side
    1,412,916.57x = 1,578,271,035,788.13
  5. Step 5: Solve for x
    x = 1,578,271,035,788.13/1,412,916.57
  6. Step 6: Final answer
    x = 1,117,030.59

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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.