Home / 612,721.14-845,495.94-354,546.60

Finding the Fourth Proportional to 612,721.14, 845,495.94 and 354,546.60

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Solution

The fourth proportional to 612,721.14, 845,495.94 and 354,546.60 is: 489,240.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,721.14 : 845,495.94 = 354,546.60 : x
  2. Step 2: Convert to fraction form
    612,721.14/845,495.94 = 354,546.60/x
  3. Step 3: Cross multiply
    612,721.14x = 845,495.94 × 354,546.60
  4. Step 4: Simplify right side
    612,721.14x = 299,767,710,840.80
  5. Step 5: Solve for x
    x = 299,767,710,840.80/612,721.14
  6. Step 6: Final answer
    x = 489,240.03

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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.