Home / 921,671.64-1,271,933.82-539,662.68

Finding the Fourth Proportional to 921,671.64, 1,271,933.82 and 539,662.68

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Solution

The fourth proportional to 921,671.64, 1,271,933.82 and 539,662.68 is: 744,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,671.64 : 1,271,933.82 = 539,662.68 : x
  2. Step 2: Convert to fraction form
    921,671.64/1,271,933.82 = 539,662.68/x
  3. Step 3: Cross multiply
    921,671.64x = 1,271,933.82 × 539,662.68
  4. Step 4: Simplify right side
    921,671.64x = 686,415,214,083.84
  5. Step 5: Solve for x
    x = 686,415,214,083.84/921,671.64
  6. Step 6: Final answer
    x = 744,750.28

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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.