Home / 949,721.08-1,310,615.40-520,028.44

Finding the Fourth Proportional to 949,721.08, 1,310,615.40 and 520,028.44

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Solution

The fourth proportional to 949,721.08, 1,310,615.40 and 520,028.44 is: 717,639.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,721.08 : 1,310,615.40 = 520,028.44 : x
  2. Step 2: Convert to fraction form
    949,721.08/1,310,615.40 = 520,028.44/x
  3. Step 3: Cross multiply
    949,721.08x = 1,310,615.40 × 520,028.44
  4. Step 4: Simplify right side
    949,721.08x = 681,557,281,901.98
  5. Step 5: Solve for x
    x = 681,557,281,901.98/949,721.08
  6. Step 6: Final answer
    x = 717,639.42

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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.