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Finding the Fourth Proportional to 454,811.20, 637,668.80 and 454,811.20

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Solution

The fourth proportional to 454,811.20, 637,668.80 and 454,811.20 is: 637,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,811.20 : 637,668.80 = 454,811.20 : x
  2. Step 2: Convert to fraction form
    454,811.20/637,668.80 = 454,811.20/x
  3. Step 3: Cross multiply
    454,811.20x = 637,668.80 × 454,811.20
  4. Step 4: Simplify right side
    454,811.20x = 290,018,912,130.56
  5. Step 5: Solve for x
    x = 290,018,912,130.56/454,811.20
  6. Step 6: Final answer
    x = 637,668.80

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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.