Home / 379,328.76-523,481.20-207,257.40

Finding the Fourth Proportional to 379,328.76, 523,481.20 and 207,257.40

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Solution

The fourth proportional to 379,328.76, 523,481.20 and 207,257.40 is: 286,019.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,328.76 : 523,481.20 = 207,257.40 : x
  2. Step 2: Convert to fraction form
    379,328.76/523,481.20 = 207,257.40/x
  3. Step 3: Cross multiply
    379,328.76x = 523,481.20 × 207,257.40
  4. Step 4: Simplify right side
    379,328.76x = 108,495,352,460.88
  5. Step 5: Solve for x
    x = 108,495,352,460.88/379,328.76
  6. Step 6: Final answer
    x = 286,019.32

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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.