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Finding the Fourth Proportional to 648,366.84, 972,676.32 and 248,978.26

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Solution

The fourth proportional to 648,366.84, 972,676.32 and 248,978.26 is: 373,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,366.84 : 972,676.32 = 248,978.26 : x
  2. Step 2: Convert to fraction form
    648,366.84/972,676.32 = 248,978.26/x
  3. Step 3: Cross multiply
    648,366.84x = 972,676.32 × 248,978.26
  4. Step 4: Simplify right side
    648,366.84x = 242,175,257,696.80
  5. Step 5: Solve for x
    x = 242,175,257,696.80/648,366.84
  6. Step 6: Final answer
    x = 373,515.80

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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.