Home / 909,268.85-1,362,131.80-553,400.21

Finding the Fourth Proportional to 909,268.85, 1,362,131.80 and 553,400.21

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Solution

The fourth proportional to 909,268.85, 1,362,131.80 and 553,400.21 is: 829,022.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,268.85 : 1,362,131.80 = 553,400.21 : x
  2. Step 2: Convert to fraction form
    909,268.85/1,362,131.80 = 553,400.21/x
  3. Step 3: Cross multiply
    909,268.85x = 1,362,131.80 × 553,400.21
  4. Step 4: Simplify right side
    909,268.85x = 753,804,024,167.68
  5. Step 5: Solve for x
    x = 753,804,024,167.68/909,268.85
  6. Step 6: Final answer
    x = 829,022.16

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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.