Home / 1,400,919.30-2,100,012.08-717,806.21

Finding the Fourth Proportional to 1,400,919.30, 2,100,012.08 and 717,806.21

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Solution

The fourth proportional to 1,400,919.30, 2,100,012.08 and 717,806.21 is: 1,076,008.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,919.30 : 2,100,012.08 = 717,806.21 : x
  2. Step 2: Convert to fraction form
    1,400,919.30/2,100,012.08 = 717,806.21/x
  3. Step 3: Cross multiply
    1,400,919.30x = 2,100,012.08 × 717,806.21
  4. Step 4: Simplify right side
    1,400,919.30x = 1,507,401,698,009.93
  5. Step 5: Solve for x
    x = 1,507,401,698,009.93/1,400,919.30
  6. Step 6: Final answer
    x = 1,076,008.94

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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.