Home / 708,704.10-1,063,554.28-640,945.36

Finding the Fourth Proportional to 708,704.10, 1,063,554.28 and 640,945.36

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Solution

The fourth proportional to 708,704.10, 1,063,554.28 and 640,945.36 is: 961,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,704.10 : 1,063,554.28 = 640,945.36 : x
  2. Step 2: Convert to fraction form
    708,704.10/1,063,554.28 = 640,945.36/x
  3. Step 3: Cross multiply
    708,704.10x = 1,063,554.28 × 640,945.36
  4. Step 4: Simplify right side
    708,704.10x = 681,680,180,874.14
  5. Step 5: Solve for x
    x = 681,680,180,874.14/708,704.10
  6. Step 6: Final answer
    x = 961,868.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.