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Finding the Fourth Proportional to 454,812.70, 637,670.90 and 454,812.70

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Solution

The fourth proportional to 454,812.70, 637,670.90 and 454,812.70 is: 637,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,812.70 : 637,670.90 = 454,812.70 : x
  2. Step 2: Convert to fraction form
    454,812.70/637,670.90 = 454,812.70/x
  3. Step 3: Cross multiply
    454,812.70x = 637,670.90 × 454,812.70
  4. Step 4: Simplify right side
    454,812.70x = 290,020,823,740.43
  5. Step 5: Solve for x
    x = 290,020,823,740.43/454,812.70
  6. Step 6: Final answer
    x = 637,670.90

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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.