Home / 739,104.30-1,108,656.45-289,675.80

Finding the Fourth Proportional to 739,104.30, 1,108,656.45 and 289,675.80

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Solution

The fourth proportional to 739,104.30, 1,108,656.45 and 289,675.80 is: 434,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,104.30 : 1,108,656.45 = 289,675.80 : x
  2. Step 2: Convert to fraction form
    739,104.30/1,108,656.45 = 289,675.80/x
  3. Step 3: Cross multiply
    739,104.30x = 1,108,656.45 × 289,675.80
  4. Step 4: Simplify right side
    739,104.30x = 321,150,944,078.91
  5. Step 5: Solve for x
    x = 321,150,944,078.91/739,104.30
  6. Step 6: Final answer
    x = 434,513.70

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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.