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Finding the Fourth Proportional to 492,087.84, 679,106.40 and 301,041.60

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Solution

The fourth proportional to 492,087.84, 679,106.40 and 301,041.60 is: 415,452.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,087.84 : 679,106.40 = 301,041.60 : x
  2. Step 2: Convert to fraction form
    492,087.84/679,106.40 = 301,041.60/x
  3. Step 3: Cross multiply
    492,087.84x = 679,106.40 × 301,041.60
  4. Step 4: Simplify right side
    492,087.84x = 204,439,277,226.24
  5. Step 5: Solve for x
    x = 204,439,277,226.24/492,087.84
  6. Step 6: Final answer
    x = 415,452.81

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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.