Home / 781,290.54-1,078,203.70-441,751.50

Finding the Fourth Proportional to 781,290.54, 1,078,203.70 and 441,751.50

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Solution

The fourth proportional to 781,290.54, 1,078,203.70 and 441,751.50 is: 609,629.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,290.54 : 1,078,203.70 = 441,751.50 : x
  2. Step 2: Convert to fraction form
    781,290.54/1,078,203.70 = 441,751.50/x
  3. Step 3: Cross multiply
    781,290.54x = 1,078,203.70 × 441,751.50
  4. Step 4: Simplify right side
    781,290.54x = 476,298,101,780.55
  5. Step 5: Solve for x
    x = 476,298,101,780.55/781,290.54
  6. Step 6: Final answer
    x = 609,629.94

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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.