Home / 1,145,431.72-1,580,699.46-636,134.09

Finding the Fourth Proportional to 1,145,431.72, 1,580,699.46 and 636,134.09

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Solution

The fourth proportional to 1,145,431.72, 1,580,699.46 and 636,134.09 is: 877,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,431.72 : 1,580,699.46 = 636,134.09 : x
  2. Step 2: Convert to fraction form
    1,145,431.72/1,580,699.46 = 636,134.09/x
  3. Step 3: Cross multiply
    1,145,431.72x = 1,580,699.46 × 636,134.09
  4. Step 4: Simplify right side
    1,145,431.72x = 1,005,536,818,887.84
  5. Step 5: Solve for x
    x = 1,005,536,818,887.84/1,145,431.72
  6. Step 6: Final answer
    x = 877,867.10

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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.