Home / 749,961.70-1,034,939.70-405,790.02

Finding the Fourth Proportional to 749,961.70, 1,034,939.70 and 405,790.02

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Solution

The fourth proportional to 749,961.70, 1,034,939.70 and 405,790.02 is: 559,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,961.70 : 1,034,939.70 = 405,790.02 : x
  2. Step 2: Convert to fraction form
    749,961.70/1,034,939.70 = 405,790.02/x
  3. Step 3: Cross multiply
    749,961.70x = 1,034,939.70 × 405,790.02
  4. Step 4: Simplify right side
    749,961.70x = 419,968,201,561.79
  5. Step 5: Solve for x
    x = 419,968,201,561.79/749,961.70
  6. Step 6: Final answer
    x = 559,986.20

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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.