Home / 781,287.54-1,078,199.55-441,748.50

Finding the Fourth Proportional to 781,287.54, 1,078,199.55 and 441,748.50

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Solution

The fourth proportional to 781,287.54, 1,078,199.55 and 441,748.50 is: 609,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,287.54 : 1,078,199.55 = 441,748.50 : x
  2. Step 2: Convert to fraction form
    781,287.54/1,078,199.55 = 441,748.50/x
  3. Step 3: Cross multiply
    781,287.54x = 1,078,199.55 × 441,748.50
  4. Step 4: Simplify right side
    781,287.54x = 476,293,033,913.18
  5. Step 5: Solve for x
    x = 476,293,033,913.18/781,287.54
  6. Step 6: Final answer
    x = 609,625.79

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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.