Home / 991,638.85-1,367,994.21-719,108.89

Finding the Fourth Proportional to 991,638.85, 1,367,994.21 and 719,108.89

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Solution

The fourth proportional to 991,638.85, 1,367,994.21 and 719,108.89 is: 992,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,638.85 : 1,367,994.21 = 719,108.89 : x
  2. Step 2: Convert to fraction form
    991,638.85/1,367,994.21 = 719,108.89/x
  3. Step 3: Cross multiply
    991,638.85x = 1,367,994.21 × 719,108.89
  4. Step 4: Simplify right side
    991,638.85x = 983,736,797,879.53
  5. Step 5: Solve for x
    x = 983,736,797,879.53/991,638.85
  6. Step 6: Final answer
    x = 992,031.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.