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Finding the Fourth Proportional to 708,944.24, 978,670.68 and 437,060.72

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Solution

The fourth proportional to 708,944.24, 978,670.68 and 437,060.72 is: 603,345.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,944.24 : 978,670.68 = 437,060.72 : x
  2. Step 2: Convert to fraction form
    708,944.24/978,670.68 = 437,060.72/x
  3. Step 3: Cross multiply
    708,944.24x = 978,670.68 × 437,060.72
  4. Step 4: Simplify right side
    708,944.24x = 427,738,512,043.69
  5. Step 5: Solve for x
    x = 427,738,512,043.69/708,944.24
  6. Step 6: Final answer
    x = 603,345.78

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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.