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Finding the Fourth Proportional to 648,598.76, 973,496.21 and 328,974.98

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Solution

The fourth proportional to 648,598.76, 973,496.21 and 328,974.98 is: 493,765.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,598.76 : 973,496.21 = 328,974.98 : x
  2. Step 2: Convert to fraction form
    648,598.76/973,496.21 = 328,974.98/x
  3. Step 3: Cross multiply
    648,598.76x = 973,496.21 × 328,974.98
  4. Step 4: Simplify right side
    648,598.76x = 320,255,889,702.47
  5. Step 5: Solve for x
    x = 320,255,889,702.47/648,598.76
  6. Step 6: Final answer
    x = 493,765.81

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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.