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Finding the Fourth Proportional to 656,234.40, 983,811.60 and 296,428.80

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Solution

The fourth proportional to 656,234.40, 983,811.60 and 296,428.80 is: 444,399.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,234.40 : 983,811.60 = 296,428.80 : x
  2. Step 2: Convert to fraction form
    656,234.40/983,811.60 = 296,428.80/x
  3. Step 3: Cross multiply
    656,234.40x = 983,811.60 × 296,428.80
  4. Step 4: Simplify right side
    656,234.40x = 291,630,092,014.08
  5. Step 5: Solve for x
    x = 291,630,092,014.08/656,234.40
  6. Step 6: Final answer
    x = 444,399.28

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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.