Home / 1,450,421.29-1,999,967.79-991,610.56

Finding the Fourth Proportional to 1,450,421.29, 1,999,967.79 and 991,610.56

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Solution

The fourth proportional to 1,450,421.29, 1,999,967.79 and 991,610.56 is: 1,367,319.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450,421.29 : 1,999,967.79 = 991,610.56 : x
  2. Step 2: Convert to fraction form
    1,450,421.29/1,999,967.79 = 991,610.56/x
  3. Step 3: Cross multiply
    1,450,421.29x = 1,999,967.79 × 991,610.56
  4. Step 4: Simplify right side
    1,450,421.29x = 1,983,189,180,223.86
  5. Step 5: Solve for x
    x = 1,983,189,180,223.86/1,450,421.29
  6. Step 6: Final answer
    x = 1,367,319.41

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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.