Home / 1,433,396.81-1,978,087.89-788,817.01

Finding the Fourth Proportional to 1,433,396.81, 1,978,087.89 and 788,817.01

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Solution

The fourth proportional to 1,433,396.81, 1,978,087.89 and 788,817.01 is: 1,088,567.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,396.81 : 1,978,087.89 = 788,817.01 : x
  2. Step 2: Convert to fraction form
    1,433,396.81/1,978,087.89 = 788,817.01/x
  3. Step 3: Cross multiply
    1,433,396.81x = 1,978,087.89 × 788,817.01
  4. Step 4: Simplify right side
    1,433,396.81x = 1,560,349,374,907.01
  5. Step 5: Solve for x
    x = 1,560,349,374,907.01/1,433,396.81
  6. Step 6: Final answer
    x = 1,088,567.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.