Home / 1,618,837.56-2,428,263.69-420,675.03

Finding the Fourth Proportional to 1,618,837.56, 2,428,263.69 and 420,675.03

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Solution

The fourth proportional to 1,618,837.56, 2,428,263.69 and 420,675.03 is: 631,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,837.56 : 2,428,263.69 = 420,675.03 : x
  2. Step 2: Convert to fraction form
    1,618,837.56/2,428,263.69 = 420,675.03/x
  3. Step 3: Cross multiply
    1,618,837.56x = 2,428,263.69 × 420,675.03
  4. Step 4: Simplify right side
    1,618,837.56x = 1,021,509,900,638.66
  5. Step 5: Solve for x
    x = 1,021,509,900,638.66/1,618,837.56
  6. Step 6: Final answer
    x = 631,014.45

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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.