Home / 1,021,347.96-1,406,416.86-998,689.56

Finding the Fourth Proportional to 1,021,347.96, 1,406,416.86 and 998,689.56

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Solution

The fourth proportional to 1,021,347.96, 1,406,416.86 and 998,689.56 is: 1,375,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,347.96 : 1,406,416.86 = 998,689.56 : x
  2. Step 2: Convert to fraction form
    1,021,347.96/1,406,416.86 = 998,689.56/x
  3. Step 3: Cross multiply
    1,021,347.96x = 1,406,416.86 × 998,689.56
  4. Step 4: Simplify right side
    1,021,347.96x = 1,404,573,835,089.98
  5. Step 5: Solve for x
    x = 1,404,573,835,089.98/1,021,347.96
  6. Step 6: Final answer
    x = 1,375,215.78

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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.