Home / 1,234,892.72-1,702,518.36-890,440.40

Finding the Fourth Proportional to 1,234,892.72, 1,702,518.36 and 890,440.40

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Solution

The fourth proportional to 1,234,892.72, 1,702,518.36 and 890,440.40 is: 1,227,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,892.72 : 1,702,518.36 = 890,440.40 : x
  2. Step 2: Convert to fraction form
    1,234,892.72/1,702,518.36 = 890,440.40/x
  3. Step 3: Cross multiply
    1,234,892.72x = 1,702,518.36 × 890,440.40
  4. Step 4: Simplify right side
    1,234,892.72x = 1,515,991,129,485.74
  5. Step 5: Solve for x
    x = 1,515,991,129,485.74/1,234,892.72
  6. Step 6: Final answer
    x = 1,227,629.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.