Home / 1,252,419.47-1,728,342.21-679,459.64

Finding the Fourth Proportional to 1,252,419.47, 1,728,342.21 and 679,459.64

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Solution

The fourth proportional to 1,252,419.47, 1,728,342.21 and 679,459.64 is: 937,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,419.47 : 1,728,342.21 = 679,459.64 : x
  2. Step 2: Convert to fraction form
    1,252,419.47/1,728,342.21 = 679,459.64/x
  3. Step 3: Cross multiply
    1,252,419.47x = 1,728,342.21 × 679,459.64
  4. Step 4: Simplify right side
    1,252,419.47x = 1,174,338,775,609.63
  5. Step 5: Solve for x
    x = 1,174,338,775,609.63/1,252,419.47
  6. Step 6: Final answer
    x = 937,656.12

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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.