Home / 1,218,575.72-1,681,633.14-682,031.72

Finding the Fourth Proportional to 1,218,575.72, 1,681,633.14 and 682,031.72

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Solution

The fourth proportional to 1,218,575.72, 1,681,633.14 and 682,031.72 is: 941,203.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,575.72 : 1,681,633.14 = 682,031.72 : x
  2. Step 2: Convert to fraction form
    1,218,575.72/1,681,633.14 = 682,031.72/x
  3. Step 3: Cross multiply
    1,218,575.72x = 1,681,633.14 × 682,031.72
  4. Step 4: Simplify right side
    1,218,575.72x = 1,146,927,142,883.20
  5. Step 5: Solve for x
    x = 1,146,927,142,883.20/1,218,575.72
  6. Step 6: Final answer
    x = 941,203.02

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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.