Home / 1,311,589.68-1,809,966.40-730,810.50

Finding the Fourth Proportional to 1,311,589.68, 1,809,966.40 and 730,810.50

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Solution

The fourth proportional to 1,311,589.68, 1,809,966.40 and 730,810.50 is: 1,008,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,589.68 : 1,809,966.40 = 730,810.50 : x
  2. Step 2: Convert to fraction form
    1,311,589.68/1,809,966.40 = 730,810.50/x
  3. Step 3: Cross multiply
    1,311,589.68x = 1,809,966.40 × 730,810.50
  4. Step 4: Simplify right side
    1,311,589.68x = 1,322,742,449,767.20
  5. Step 5: Solve for x
    x = 1,322,742,449,767.20/1,311,589.68
  6. Step 6: Final answer
    x = 1,008,503.25

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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.