Home / 1,432,930.21-1,977,443.62-788,336.56

Finding the Fourth Proportional to 1,432,930.21, 1,977,443.62 and 788,336.56

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Solution

The fourth proportional to 1,432,930.21, 1,977,443.62 and 788,336.56 is: 1,087,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,930.21 : 1,977,443.62 = 788,336.56 : x
  2. Step 2: Convert to fraction form
    1,432,930.21/1,977,443.62 = 788,336.56/x
  3. Step 3: Cross multiply
    1,432,930.21x = 1,977,443.62 × 788,336.56
  4. Step 4: Simplify right side
    1,432,930.21x = 1,558,891,100,984.75
  5. Step 5: Solve for x
    x = 1,558,891,100,984.75/1,432,930.21
  6. Step 6: Final answer
    x = 1,087,904.41

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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.