Home / 415,919.10-623,878.74-116,443.79

Finding the Fourth Proportional to 415,919.10, 623,878.74 and 116,443.79

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Solution

The fourth proportional to 415,919.10, 623,878.74 and 116,443.79 is: 174,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,919.10 : 623,878.74 = 116,443.79 : x
  2. Step 2: Convert to fraction form
    415,919.10/623,878.74 = 116,443.79/x
  3. Step 3: Cross multiply
    415,919.10x = 623,878.74 × 116,443.79
  4. Step 4: Simplify right side
    415,919.10x = 72,646,801,866.63
  5. Step 5: Solve for x
    x = 72,646,801,866.63/415,919.10
  6. Step 6: Final answer
    x = 174,665.70

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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.