Home / 1,405,360.75-1,939,395.60-760,780.77

Finding the Fourth Proportional to 1,405,360.75, 1,939,395.60 and 760,780.77

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Solution

The fourth proportional to 1,405,360.75, 1,939,395.60 and 760,780.77 is: 1,049,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,360.75 : 1,939,395.60 = 760,780.77 : x
  2. Step 2: Convert to fraction form
    1,405,360.75/1,939,395.60 = 760,780.77/x
  3. Step 3: Cross multiply
    1,405,360.75x = 1,939,395.60 × 760,780.77
  4. Step 4: Simplify right side
    1,405,360.75x = 1,475,454,877,902.61
  5. Step 5: Solve for x
    x = 1,475,454,877,902.61/1,405,360.75
  6. Step 6: Final answer
    x = 1,049,876.25

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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.