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Finding the Fourth Proportional to 656,972.72, 983,678.33 and 340,765.32

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Solution

The fourth proportional to 656,972.72, 983,678.33 and 340,765.32 is: 510,224.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,972.72 : 983,678.33 = 340,765.32 : x
  2. Step 2: Convert to fraction form
    656,972.72/983,678.33 = 340,765.32/x
  3. Step 3: Cross multiply
    656,972.72x = 983,678.33 × 340,765.32
  4. Step 4: Simplify right side
    656,972.72x = 335,203,461,751.43
  5. Step 5: Solve for x
    x = 335,203,461,751.43/656,972.72
  6. Step 6: Final answer
    x = 510,224.33

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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.