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Finding the Fourth Proportional to 495,033.40, 683,028.99 and 280,173.46

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Solution

The fourth proportional to 495,033.40, 683,028.99 and 280,173.46 is: 386,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,033.40 : 683,028.99 = 280,173.46 : x
  2. Step 2: Convert to fraction form
    495,033.40/683,028.99 = 280,173.46/x
  3. Step 3: Cross multiply
    495,033.40x = 683,028.99 × 280,173.46
  4. Step 4: Simplify right side
    495,033.40x = 191,366,595,408.61
  5. Step 5: Solve for x
    x = 191,366,595,408.61/495,033.40
  6. Step 6: Final answer
    x = 386,573.10

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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.