Home / 1,405,360.06-1,939,394.65-760,780.09

Finding the Fourth Proportional to 1,405,360.06, 1,939,394.65 and 760,780.09

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Solution

The fourth proportional to 1,405,360.06, 1,939,394.65 and 760,780.09 is: 1,049,875.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,360.06 : 1,939,394.65 = 760,780.09 : x
  2. Step 2: Convert to fraction form
    1,405,360.06/1,939,394.65 = 760,780.09/x
  3. Step 3: Cross multiply
    1,405,360.06x = 1,939,394.65 × 760,780.09
  4. Step 4: Simplify right side
    1,405,360.06x = 1,475,452,836,372.52
  5. Step 5: Solve for x
    x = 1,475,452,836,372.52/1,405,360.06
  6. Step 6: Final answer
    x = 1,049,875.32

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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.