Home / 1,405,240.38-1,939,232.88-760,658.58

Finding the Fourth Proportional to 1,405,240.38, 1,939,232.88 and 760,658.58

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Solution

The fourth proportional to 1,405,240.38, 1,939,232.88 and 760,658.58 is: 1,049,709.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,240.38 : 1,939,232.88 = 760,658.58 : x
  2. Step 2: Convert to fraction form
    1,405,240.38/1,939,232.88 = 760,658.58/x
  3. Step 3: Cross multiply
    1,405,240.38x = 1,939,232.88 × 760,658.58
  4. Step 4: Simplify right side
    1,405,240.38x = 1,475,094,128,790.11
  5. Step 5: Solve for x
    x = 1,475,094,128,790.11/1,405,240.38
  6. Step 6: Final answer
    x = 1,049,709.47

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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.