Home / 415,506.18-623,037.69-215,625.30

Finding the Fourth Proportional to 415,506.18, 623,037.69 and 215,625.30

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Solution

The fourth proportional to 415,506.18, 623,037.69 and 215,625.30 is: 323,322.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,506.18 : 623,037.69 = 215,625.30 : x
  2. Step 2: Convert to fraction form
    415,506.18/623,037.69 = 215,625.30/x
  3. Step 3: Cross multiply
    415,506.18x = 623,037.69 × 215,625.30
  4. Step 4: Simplify right side
    415,506.18x = 134,342,688,817.56
  5. Step 5: Solve for x
    x = 134,342,688,817.56/415,506.18
  6. Step 6: Final answer
    x = 323,322.96

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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.