Home / 647,733.92-971,390.36-215,335.31

Finding the Fourth Proportional to 647,733.92, 971,390.36 and 215,335.31

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Solution

The fourth proportional to 647,733.92, 971,390.36 and 215,335.31 is: 322,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,733.92 : 971,390.36 = 215,335.31 : x
  2. Step 2: Convert to fraction form
    647,733.92/971,390.36 = 215,335.31/x
  3. Step 3: Cross multiply
    647,733.92x = 971,390.36 × 215,335.31
  4. Step 4: Simplify right side
    647,733.92x = 209,174,639,983.00
  5. Step 5: Solve for x
    x = 209,174,639,983.00/647,733.92
  6. Step 6: Final answer
    x = 322,932.97

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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.