Home / 647,955.02-971,928.41-221,284.98

Finding the Fourth Proportional to 647,955.02, 971,928.41 and 221,284.98

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Solution

The fourth proportional to 647,955.02, 971,928.41 and 221,284.98 is: 331,926.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,955.02 : 971,928.41 = 221,284.98 : x
  2. Step 2: Convert to fraction form
    647,955.02/971,928.41 = 221,284.98/x
  3. Step 3: Cross multiply
    647,955.02x = 971,928.41 × 221,284.98
  4. Step 4: Simplify right side
    647,955.02x = 215,073,157,661.86
  5. Step 5: Solve for x
    x = 215,073,157,661.86/647,955.02
  6. Step 6: Final answer
    x = 331,926.06

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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.