Home / 1,405,342-2,108,071.32-408,070

Finding the Fourth Proportional to 1,405,342, 2,108,071.32 and 408,070

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Solution

The fourth proportional to 1,405,342, 2,108,071.32 and 408,070 is: 612,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,342 : 2,108,071.32 = 408,070 : x
  2. Step 2: Convert to fraction form
    1,405,342/2,108,071.32 = 408,070/x
  3. Step 3: Cross multiply
    1,405,342x = 2,108,071.32 × 408,070
  4. Step 4: Simplify right side
    1,405,342x = 860,240,663,552.40
  5. Step 5: Solve for x
    x = 860,240,663,552.40/1,405,342
  6. Step 6: Final answer
    x = 612,121.93

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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.