Home / 708,701.10-1,063,549.79-640,942.37

Finding the Fourth Proportional to 708,701.10, 1,063,549.79 and 640,942.37

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Solution

The fourth proportional to 708,701.10, 1,063,549.79 and 640,942.37 is: 961,864.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,701.10 : 1,063,549.79 = 640,942.37 : x
  2. Step 2: Convert to fraction form
    708,701.10/1,063,549.79 = 640,942.37/x
  3. Step 3: Cross multiply
    708,701.10x = 1,063,549.79 × 640,942.37
  4. Step 4: Simplify right side
    708,701.10x = 681,674,123,015.60
  5. Step 5: Solve for x
    x = 681,674,123,015.60/708,701.10
  6. Step 6: Final answer
    x = 961,864.07

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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.