Home / 716,289.80-1,075,004.94-400,687.88

Finding the Fourth Proportional to 716,289.80, 1,075,004.94 and 400,687.88

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Solution

The fourth proportional to 716,289.80, 1,075,004.94 and 400,687.88 is: 601,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,289.80 : 1,075,004.94 = 400,687.88 : x
  2. Step 2: Convert to fraction form
    716,289.80/1,075,004.94 = 400,687.88/x
  3. Step 3: Cross multiply
    716,289.80x = 1,075,004.94 × 400,687.88
  4. Step 4: Simplify right side
    716,289.80x = 430,741,450,398.13
  5. Step 5: Solve for x
    x = 430,741,450,398.13/716,289.80
  6. Step 6: Final answer
    x = 601,350.81

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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.