Home / 1,245,336.60-1,868,235.30-403,915.80

Finding the Fourth Proportional to 1,245,336.60, 1,868,235.30 and 403,915.80

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Solution

The fourth proportional to 1,245,336.60, 1,868,235.30 and 403,915.80 is: 605,948.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,336.60 : 1,868,235.30 = 403,915.80 : x
  2. Step 2: Convert to fraction form
    1,245,336.60/1,868,235.30 = 403,915.80/x
  3. Step 3: Cross multiply
    1,245,336.60x = 1,868,235.30 × 403,915.80
  4. Step 4: Simplify right side
    1,245,336.60x = 754,609,755,787.74
  5. Step 5: Solve for x
    x = 754,609,755,787.74/1,245,336.60
  6. Step 6: Final answer
    x = 605,948.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.