Home / 487,141.10-730,822.35-220,977.80

Finding the Fourth Proportional to 487,141.10, 730,822.35 and 220,977.80

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Solution

The fourth proportional to 487,141.10, 730,822.35 and 220,977.80 is: 331,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,141.10 : 730,822.35 = 220,977.80 : x
  2. Step 2: Convert to fraction form
    487,141.10/730,822.35 = 220,977.80/x
  3. Step 3: Cross multiply
    487,141.10x = 730,822.35 × 220,977.80
  4. Step 4: Simplify right side
    487,141.10x = 161,495,515,093.83
  5. Step 5: Solve for x
    x = 161,495,515,093.83/487,141.10
  6. Step 6: Final answer
    x = 331,516.92

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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.