Home / 788,353.39-1,087,928.73-448,821.64

Finding the Fourth Proportional to 788,353.39, 1,087,928.73 and 448,821.64

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Solution

The fourth proportional to 788,353.39, 1,087,928.73 and 448,821.64 is: 619,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,353.39 : 1,087,928.73 = 448,821.64 : x
  2. Step 2: Convert to fraction form
    788,353.39/1,087,928.73 = 448,821.64/x
  3. Step 3: Cross multiply
    788,353.39x = 1,087,928.73 × 448,821.64
  4. Step 4: Simplify right side
    788,353.39x = 488,285,956,801.72
  5. Step 5: Solve for x
    x = 488,285,956,801.72/788,353.39
  6. Step 6: Final answer
    x = 619,374.46

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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.