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Finding the Fourth Proportional to 582,157.06, 803,392.37 and 320,520.34

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Solution

The fourth proportional to 582,157.06, 803,392.37 and 320,520.34 is: 442,326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,157.06 : 803,392.37 = 320,520.34 : x
  2. Step 2: Convert to fraction form
    582,157.06/803,392.37 = 320,520.34/x
  3. Step 3: Cross multiply
    582,157.06x = 803,392.37 × 320,520.34
  4. Step 4: Simplify right side
    582,157.06x = 257,503,595,585.81
  5. Step 5: Solve for x
    x = 257,503,595,585.81/582,157.06
  6. Step 6: Final answer
    x = 442,326.67

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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.