Home / 455,896.20-683,844.30-434,123.40

Finding the Fourth Proportional to 455,896.20, 683,844.30 and 434,123.40

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Solution

The fourth proportional to 455,896.20, 683,844.30 and 434,123.40 is: 651,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,896.20 : 683,844.30 = 434,123.40 : x
  2. Step 2: Convert to fraction form
    455,896.20/683,844.30 = 434,123.40/x
  3. Step 3: Cross multiply
    455,896.20x = 683,844.30 × 434,123.40
  4. Step 4: Simplify right side
    455,896.20x = 296,872,812,586.62
  5. Step 5: Solve for x
    x = 296,872,812,586.62/455,896.20
  6. Step 6: Final answer
    x = 651,185.10

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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.