Home / 1,359,809.43-2,039,012.21-400,140.31

Finding the Fourth Proportional to 1,359,809.43, 2,039,012.21 and 400,140.31

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Solution

The fourth proportional to 1,359,809.43, 2,039,012.21 and 400,140.31 is: 600,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,809.43 : 2,039,012.21 = 400,140.31 : x
  2. Step 2: Convert to fraction form
    1,359,809.43/2,039,012.21 = 400,140.31/x
  3. Step 3: Cross multiply
    1,359,809.43x = 2,039,012.21 × 400,140.31
  4. Step 4: Simplify right side
    1,359,809.43x = 815,890,977,803.19
  5. Step 5: Solve for x
    x = 815,890,977,803.19/1,359,809.43
  6. Step 6: Final answer
    x = 600,003.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.