Home / 684,672.21-1,021,991.92-603,871.07

Finding the Fourth Proportional to 684,672.21, 1,021,991.92 and 603,871.07

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Solution

The fourth proportional to 684,672.21, 1,021,991.92 and 603,871.07 is: 901,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,672.21 : 1,021,991.92 = 603,871.07 : x
  2. Step 2: Convert to fraction form
    684,672.21/1,021,991.92 = 603,871.07/x
  3. Step 3: Cross multiply
    684,672.21x = 1,021,991.92 × 603,871.07
  4. Step 4: Simplify right side
    684,672.21x = 617,151,347,642.12
  5. Step 5: Solve for x
    x = 617,151,347,642.12/684,672.21
  6. Step 6: Final answer
    x = 901,382.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.