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Finding the Fourth Proportional to 565,989.16, 781,052.02 and 311,334.92

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Solution

The fourth proportional to 565,989.16, 781,052.02 and 311,334.92 is: 429,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,989.16 : 781,052.02 = 311,334.92 : x
  2. Step 2: Convert to fraction form
    565,989.16/781,052.02 = 311,334.92/x
  3. Step 3: Cross multiply
    565,989.16x = 781,052.02 × 311,334.92
  4. Step 4: Simplify right side
    565,989.16x = 243,168,768,162.54
  5. Step 5: Solve for x
    x = 243,168,768,162.54/565,989.16
  6. Step 6: Final answer
    x = 429,635.03

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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.