Home / 671,511.80-1,006,490.10-271,890.20

Finding the Fourth Proportional to 671,511.80, 1,006,490.10 and 271,890.20

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Solution

The fourth proportional to 671,511.80, 1,006,490.10 and 271,890.20 is: 407,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,511.80 : 1,006,490.10 = 271,890.20 : x
  2. Step 2: Convert to fraction form
    671,511.80/1,006,490.10 = 271,890.20/x
  3. Step 3: Cross multiply
    671,511.80x = 1,006,490.10 × 271,890.20
  4. Step 4: Simplify right side
    671,511.80x = 273,654,794,587.02
  5. Step 5: Solve for x
    x = 273,654,794,587.02/671,511.80
  6. Step 6: Final answer
    x = 407,520.46

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1.5x scale

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.