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Finding the Fourth Proportional to 648,599.76, 973,497.71 and 328,975.98

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Solution

The fourth proportional to 648,599.76, 973,497.71 and 328,975.98 is: 493,767.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,599.76 : 973,497.71 = 328,975.98 : x
  2. Step 2: Convert to fraction form
    648,599.76/973,497.71 = 328,975.98/x
  3. Step 3: Cross multiply
    648,599.76x = 973,497.71 × 328,975.98
  4. Step 4: Simplify right side
    648,599.76x = 320,257,356,662.64
  5. Step 5: Solve for x
    x = 320,257,356,662.64/648,599.76
  6. Step 6: Final answer
    x = 493,767.31

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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.