Home / 1,256,890.88-1,885,631.62-415,442.64

Finding the Fourth Proportional to 1,256,890.88, 1,885,631.62 and 415,442.64

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Solution

The fourth proportional to 1,256,890.88, 1,885,631.62 and 415,442.64 is: 623,261.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,890.88 : 1,885,631.62 = 415,442.64 : x
  2. Step 2: Convert to fraction form
    1,256,890.88/1,885,631.62 = 415,442.64/x
  3. Step 3: Cross multiply
    1,256,890.88x = 1,885,631.62 × 415,442.64
  4. Step 4: Simplify right side
    1,256,890.88x = 783,371,778,280.28
  5. Step 5: Solve for x
    x = 783,371,778,280.28/1,256,890.88
  6. Step 6: Final answer
    x = 623,261.57

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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.