Home / 1,296,514.64-1,789,186.92-723,548.72

Finding the Fourth Proportional to 1,296,514.64, 1,789,186.92 and 723,548.72

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Solution

The fourth proportional to 1,296,514.64, 1,789,186.92 and 723,548.72 is: 998,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,514.64 : 1,789,186.92 = 723,548.72 : x
  2. Step 2: Convert to fraction form
    1,296,514.64/1,789,186.92 = 723,548.72/x
  3. Step 3: Cross multiply
    1,296,514.64x = 1,789,186.92 × 723,548.72
  4. Step 4: Simplify right side
    1,296,514.64x = 1,294,563,905,806.74
  5. Step 5: Solve for x
    x = 1,294,563,905,806.74/1,296,514.64
  6. Step 6: Final answer
    x = 998,495.40

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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.