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Finding the Fourth Proportional to 710,553.32, 980,563.30 and 392,601.32

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Solution

The fourth proportional to 710,553.32, 980,563.30 and 392,601.32 is: 541,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,553.32 : 980,563.30 = 392,601.32 : x
  2. Step 2: Convert to fraction form
    710,553.32/980,563.30 = 392,601.32/x
  3. Step 3: Cross multiply
    710,553.32x = 980,563.30 × 392,601.32
  4. Step 4: Simplify right side
    710,553.32x = 384,970,445,923.56
  5. Step 5: Solve for x
    x = 384,970,445,923.56/710,553.32
  6. Step 6: Final answer
    x = 541,789.67

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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.