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Finding the Fourth Proportional to 454,804.20, 637,659 and 454,804.20

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Solution

The fourth proportional to 454,804.20, 637,659 and 454,804.20 is: 637,659

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,804.20 : 637,659 = 454,804.20 : x
  2. Step 2: Convert to fraction form
    454,804.20/637,659 = 454,804.20/x
  3. Step 3: Cross multiply
    454,804.20x = 637,659 × 454,804.20
  4. Step 4: Simplify right side
    454,804.20x = 290,009,991,367.80
  5. Step 5: Solve for x
    x = 290,009,991,367.80/454,804.20
  6. Step 6: Final answer
    x = 637,659

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1.5x scale

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.