Home / 828,377.88-1,242,421.02-221,173.74

Finding the Fourth Proportional to 828,377.88, 1,242,421.02 and 221,173.74

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Solution

The fourth proportional to 828,377.88, 1,242,421.02 and 221,173.74 is: 331,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,377.88 : 1,242,421.02 = 221,173.74 : x
  2. Step 2: Convert to fraction form
    828,377.88/1,242,421.02 = 221,173.74/x
  3. Step 3: Cross multiply
    828,377.88x = 1,242,421.02 × 221,173.74
  4. Step 4: Simplify right side
    828,377.88x = 274,790,903,648.02
  5. Step 5: Solve for x
    x = 274,790,903,648.02/828,377.88
  6. Step 6: Final answer
    x = 331,721.68

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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.