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Finding the Fourth Proportional to 656,063.20, 983,475.60 and 356,101.60

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Solution

The fourth proportional to 656,063.20, 983,475.60 and 356,101.60 is: 533,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,063.20 : 983,475.60 = 356,101.60 : x
  2. Step 2: Convert to fraction form
    656,063.20/983,475.60 = 356,101.60/x
  3. Step 3: Cross multiply
    656,063.20x = 983,475.60 × 356,101.60
  4. Step 4: Simplify right side
    656,063.20x = 350,217,234,720.96
  5. Step 5: Solve for x
    x = 350,217,234,720.96/656,063.20
  6. Step 6: Final answer
    x = 533,816.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.