Home / 1,405,382.90-1,939,429.05-760,803.09

Finding the Fourth Proportional to 1,405,382.90, 1,939,429.05 and 760,803.09

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Solution

The fourth proportional to 1,405,382.90, 1,939,429.05 and 760,803.09 is: 1,049,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,382.90 : 1,939,429.05 = 760,803.09 : x
  2. Step 2: Convert to fraction form
    1,405,382.90/1,939,429.05 = 760,803.09/x
  3. Step 3: Cross multiply
    1,405,382.90x = 1,939,429.05 × 760,803.09
  4. Step 4: Simplify right side
    1,405,382.90x = 1,475,523,614,075.76
  5. Step 5: Solve for x
    x = 1,475,523,614,075.76/1,405,382.90
  6. Step 6: Final answer
    x = 1,049,908.62

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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.