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Finding the Fourth Proportional to 454,496.40, 627,798.60 and 368,775.72

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Solution

The fourth proportional to 454,496.40, 627,798.60 and 368,775.72 is: 509,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,496.40 : 627,798.60 = 368,775.72 : x
  2. Step 2: Convert to fraction form
    454,496.40/627,798.60 = 368,775.72/x
  3. Step 3: Cross multiply
    454,496.40x = 627,798.60 × 368,775.72
  4. Step 4: Simplify right side
    454,496.40x = 231,516,880,729.99
  5. Step 5: Solve for x
    x = 231,516,880,729.99/454,496.40
  6. Step 6: Final answer
    x = 509,392.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.