Home / 708,435.52-1,062,128.40-427,887.16

Finding the Fourth Proportional to 708,435.52, 1,062,128.40 and 427,887.16

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Solution

The fourth proportional to 708,435.52, 1,062,128.40 and 427,887.16 is: 641,513.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,435.52 : 1,062,128.40 = 427,887.16 : x
  2. Step 2: Convert to fraction form
    708,435.52/1,062,128.40 = 427,887.16/x
  3. Step 3: Cross multiply
    708,435.52x = 1,062,128.40 × 427,887.16
  4. Step 4: Simplify right side
    708,435.52x = 454,471,100,371.45
  5. Step 5: Solve for x
    x = 454,471,100,371.45/708,435.52
  6. Step 6: Final answer
    x = 641,513.71

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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.