Home / 749,960.70-1,034,938.32-405,789.02

Finding the Fourth Proportional to 749,960.70, 1,034,938.32 and 405,789.02

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Solution

The fourth proportional to 749,960.70, 1,034,938.32 and 405,789.02 is: 559,984.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,960.70 : 1,034,938.32 = 405,789.02 : x
  2. Step 2: Convert to fraction form
    749,960.70/1,034,938.32 = 405,789.02/x
  3. Step 3: Cross multiply
    749,960.70x = 1,034,938.32 × 405,789.02
  4. Step 4: Simplify right side
    749,960.70x = 419,966,606,633.25
  5. Step 5: Solve for x
    x = 419,966,606,633.25/749,960.70
  6. Step 6: Final answer
    x = 559,984.82

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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.