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Finding the Fourth Proportional to 345,929.36, 477,520.44 and 297,339.44

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Solution

The fourth proportional to 345,929.36, 477,520.44 and 297,339.44 is: 410,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,929.36 : 477,520.44 = 297,339.44 : x
  2. Step 2: Convert to fraction form
    345,929.36/477,520.44 = 297,339.44/x
  3. Step 3: Cross multiply
    345,929.36x = 477,520.44 × 297,339.44
  4. Step 4: Simplify right side
    345,929.36x = 141,985,660,218.15
  5. Step 5: Solve for x
    x = 141,985,660,218.15/345,929.36
  6. Step 6: Final answer
    x = 410,446.98

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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.