Home / 1,420,844.49-2,129,830.63-611,756.64

Finding the Fourth Proportional to 1,420,844.49, 2,129,830.63 and 611,756.64

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Solution

The fourth proportional to 1,420,844.49, 2,129,830.63 and 611,756.64 is: 917,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,844.49 : 2,129,830.63 = 611,756.64 : x
  2. Step 2: Convert to fraction form
    1,420,844.49/2,129,830.63 = 611,756.64/x
  3. Step 3: Cross multiply
    1,420,844.49x = 2,129,830.63 × 611,756.64
  4. Step 4: Simplify right side
    1,420,844.49x = 1,302,938,028,448.49
  5. Step 5: Solve for x
    x = 1,302,938,028,448.49/1,420,844.49
  6. Step 6: Final answer
    x = 917,016.63

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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.