Home / 829,265-1,243,848.30-487,900.28

Finding the Fourth Proportional to 829,265, 1,243,848.30 and 487,900.28

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Solution

The fourth proportional to 829,265, 1,243,848.30 and 487,900.28 is: 731,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,265 : 1,243,848.30 = 487,900.28 : x
  2. Step 2: Convert to fraction form
    829,265/1,243,848.30 = 487,900.28/x
  3. Step 3: Cross multiply
    829,265x = 1,243,848.30 × 487,900.28
  4. Step 4: Simplify right side
    829,265x = 606,873,933,847.52
  5. Step 5: Solve for x
    x = 606,873,933,847.52/829,265
  6. Step 6: Final answer
    x = 731,821.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.