Home / 708,697.55-1,063,544.47-640,938.82

Finding the Fourth Proportional to 708,697.55, 1,063,544.47 and 640,938.82

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Solution

The fourth proportional to 708,697.55, 1,063,544.47 and 640,938.82 is: 961,858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,697.55 : 1,063,544.47 = 640,938.82 : x
  2. Step 2: Convert to fraction form
    708,697.55/1,063,544.47 = 640,938.82/x
  3. Step 3: Cross multiply
    708,697.55x = 1,063,544.47 × 640,938.82
  4. Step 4: Simplify right side
    708,697.55x = 681,666,937,619.33
  5. Step 5: Solve for x
    x = 681,666,937,619.33/708,697.55
  6. Step 6: Final answer
    x = 961,858.75

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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.