Home / 1,558,616.81-2,142,634.48-1,340,020.18

Finding the Fourth Proportional to 1,558,616.81, 2,142,634.48 and 1,340,020.18

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Solution

The fourth proportional to 1,558,616.81, 2,142,634.48 and 1,340,020.18 is: 1,842,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558,616.81 : 2,142,634.48 = 1,340,020.18 : x
  2. Step 2: Convert to fraction form
    1,558,616.81/2,142,634.48 = 1,340,020.18/x
  3. Step 3: Cross multiply
    1,558,616.81x = 2,142,634.48 × 1,340,020.18
  4. Step 4: Simplify right side
    1,558,616.81x = 2,871,173,441,839.05
  5. Step 5: Solve for x
    x = 2,871,173,441,839.05/1,558,616.81
  6. Step 6: Final answer
    x = 1,842,129.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.