Home / 1,256,905.88-1,885,654.14-415,457.66

Finding the Fourth Proportional to 1,256,905.88, 1,885,654.14 and 415,457.66

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Solution

The fourth proportional to 1,256,905.88, 1,885,654.14 and 415,457.66 is: 623,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,905.88 : 1,885,654.14 = 415,457.66 : x
  2. Step 2: Convert to fraction form
    1,256,905.88/1,885,654.14 = 415,457.66/x
  3. Step 3: Cross multiply
    1,256,905.88x = 1,885,654.14 × 415,457.66
  4. Step 4: Simplify right side
    1,256,905.88x = 783,409,456,573.71
  5. Step 5: Solve for x
    x = 783,409,456,573.71/1,256,905.88
  6. Step 6: Final answer
    x = 623,284.11

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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.