Home / 744,390.39-1,116,696.30-345,071.53

Finding the Fourth Proportional to 744,390.39, 1,116,696.30 and 345,071.53

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Solution

The fourth proportional to 744,390.39, 1,116,696.30 and 345,071.53 is: 517,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,390.39 : 1,116,696.30 = 345,071.53 : x
  2. Step 2: Convert to fraction form
    744,390.39/1,116,696.30 = 345,071.53/x
  3. Step 3: Cross multiply
    744,390.39x = 1,116,696.30 × 345,071.53
  4. Step 4: Simplify right side
    744,390.39x = 385,340,093,477.50
  5. Step 5: Solve for x
    x = 385,340,093,477.50/744,390.39
  6. Step 6: Final answer
    x = 517,658.61

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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.