Home / 1,286,131.47-1,774,733.55-742,442.42

Finding the Fourth Proportional to 1,286,131.47, 1,774,733.55 and 742,442.42

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Solution

The fourth proportional to 1,286,131.47, 1,774,733.55 and 742,442.42 is: 1,024,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,131.47 : 1,774,733.55 = 742,442.42 : x
  2. Step 2: Convert to fraction form
    1,286,131.47/1,774,733.55 = 742,442.42/x
  3. Step 3: Cross multiply
    1,286,131.47x = 1,774,733.55 × 742,442.42
  4. Step 4: Simplify right side
    1,286,131.47x = 1,317,637,462,843.52
  5. Step 5: Solve for x
    x = 1,317,637,462,843.52/1,286,131.47
  6. Step 6: Final answer
    x = 1,024,496.71

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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.