Home / 1,296,046.08-1,788,459.78-715,274.40

Finding the Fourth Proportional to 1,296,046.08, 1,788,459.78 and 715,274.40

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Solution

The fourth proportional to 1,296,046.08, 1,788,459.78 and 715,274.40 is: 987,032.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,046.08 : 1,788,459.78 = 715,274.40 : x
  2. Step 2: Convert to fraction form
    1,296,046.08/1,788,459.78 = 715,274.40/x
  3. Step 3: Cross multiply
    1,296,046.08x = 1,788,459.78 × 715,274.40
  4. Step 4: Simplify right side
    1,296,046.08x = 1,279,239,496,063.63
  5. Step 5: Solve for x
    x = 1,279,239,496,063.63/1,296,046.08
  6. Step 6: Final answer
    x = 987,032.42

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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.