Home / 1,187,010.52-1,637,170.36-1,021,719.88

Finding the Fourth Proportional to 1,187,010.52, 1,637,170.36 and 1,021,719.88

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Solution

The fourth proportional to 1,187,010.52, 1,637,170.36 and 1,021,719.88 is: 1,409,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,010.52 : 1,637,170.36 = 1,021,719.88 : x
  2. Step 2: Convert to fraction form
    1,187,010.52/1,637,170.36 = 1,021,719.88/x
  3. Step 3: Cross multiply
    1,187,010.52x = 1,637,170.36 × 1,021,719.88
  4. Step 4: Simplify right side
    1,187,010.52x = 1,672,729,503,758.76
  5. Step 5: Solve for x
    x = 1,672,729,503,758.76/1,187,010.52
  6. Step 6: Final answer
    x = 1,409,195.18

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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.