Home / 855,154.64-1,282,352.88-455,720.96

Finding the Fourth Proportional to 855,154.64, 1,282,352.88 and 455,720.96

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Solution

The fourth proportional to 855,154.64, 1,282,352.88 and 455,720.96 is: 683,379.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,154.64 : 1,282,352.88 = 455,720.96 : x
  2. Step 2: Convert to fraction form
    855,154.64/1,282,352.88 = 455,720.96/x
  3. Step 3: Cross multiply
    855,154.64x = 1,282,352.88 × 455,720.96
  4. Step 4: Simplify right side
    855,154.64x = 584,395,085,532.37
  5. Step 5: Solve for x
    x = 584,395,085,532.37/855,154.64
  6. Step 6: Final answer
    x = 683,379.42

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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.