Home / 1,178,015.19-1,625,617.72-719,896.40

Finding the Fourth Proportional to 1,178,015.19, 1,625,617.72 and 719,896.40

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Solution

The fourth proportional to 1,178,015.19, 1,625,617.72 and 719,896.40 is: 993,430.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,015.19 : 1,625,617.72 = 719,896.40 : x
  2. Step 2: Convert to fraction form
    1,178,015.19/1,625,617.72 = 719,896.40/x
  3. Step 3: Cross multiply
    1,178,015.19x = 1,625,617.72 × 719,896.40
  4. Step 4: Simplify right side
    1,178,015.19x = 1,170,276,344,404.21
  5. Step 5: Solve for x
    x = 1,170,276,344,404.21/1,178,015.19
  6. Step 6: Final answer
    x = 993,430.61

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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.