Home / 1,433,439.89-1,978,146.45-788,860.07

Finding the Fourth Proportional to 1,433,439.89, 1,978,146.45 and 788,860.07

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Solution

The fourth proportional to 1,433,439.89, 1,978,146.45 and 788,860.07 is: 1,088,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,439.89 : 1,978,146.45 = 788,860.07 : x
  2. Step 2: Convert to fraction form
    1,433,439.89/1,978,146.45 = 788,860.07/x
  3. Step 3: Cross multiply
    1,433,439.89x = 1,978,146.45 × 788,860.07
  4. Step 4: Simplify right side
    1,433,439.89x = 1,560,480,737,126.52
  5. Step 5: Solve for x
    x = 1,560,480,737,126.52/1,433,439.89
  6. Step 6: Final answer
    x = 1,088,626.56

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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.