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Finding the Fourth Proportional to 389,392.10, 537,604.34 and 298,573.58

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Solution

The fourth proportional to 389,392.10, 537,604.34 and 298,573.58 is: 412,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,392.10 : 537,604.34 = 298,573.58 : x
  2. Step 2: Convert to fraction form
    389,392.10/537,604.34 = 298,573.58/x
  3. Step 3: Cross multiply
    389,392.10x = 537,604.34 × 298,573.58
  4. Step 4: Simplify right side
    389,392.10x = 160,514,448,236.45
  5. Step 5: Solve for x
    x = 160,514,448,236.45/389,392.10
  6. Step 6: Final answer
    x = 412,218.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.