Home / 854,435.52-1,282,423.68-455,408.64

Finding the Fourth Proportional to 854,435.52, 1,282,423.68 and 455,408.64

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Solution

The fourth proportional to 854,435.52, 1,282,423.68 and 455,408.64 is: 683,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,435.52 : 1,282,423.68 = 455,408.64 : x
  2. Step 2: Convert to fraction form
    854,435.52/1,282,423.68 = 455,408.64/x
  3. Step 3: Cross multiply
    854,435.52x = 1,282,423.68 × 455,408.64
  4. Step 4: Simplify right side
    854,435.52x = 584,026,824,012.60
  5. Step 5: Solve for x
    x = 584,026,824,012.60/854,435.52
  6. Step 6: Final answer
    x = 683,523.58

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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.