Home / 708,698.80-1,063,546.35-640,940.07

Finding the Fourth Proportional to 708,698.80, 1,063,546.35 and 640,940.07

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Solution

The fourth proportional to 708,698.80, 1,063,546.35 and 640,940.07 is: 961,860.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,698.80 : 1,063,546.35 = 640,940.07 : x
  2. Step 2: Convert to fraction form
    708,698.80/1,063,546.35 = 640,940.07/x
  3. Step 3: Cross multiply
    708,698.80x = 1,063,546.35 × 640,940.07
  4. Step 4: Simplify right side
    708,698.80x = 681,669,473,602.02
  5. Step 5: Solve for x
    x = 681,669,473,602.02/708,698.80
  6. Step 6: Final answer
    x = 961,860.63

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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.