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Finding the Fourth Proportional to 454,791.70, 637,641.50 and 454,791.70

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Solution

The fourth proportional to 454,791.70, 637,641.50 and 454,791.70 is: 637,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,791.70 : 637,641.50 = 454,791.70 : x
  2. Step 2: Convert to fraction form
    454,791.70/637,641.50 = 454,791.70/x
  3. Step 3: Cross multiply
    454,791.70x = 637,641.50 × 454,791.70
  4. Step 4: Simplify right side
    454,791.70x = 289,994,061,775.55
  5. Step 5: Solve for x
    x = 289,994,061,775.55/454,791.70
  6. Step 6: Final answer
    x = 637,641.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.