Home / 1,422,810.80-2,133,486.60-425,409.20

Finding the Fourth Proportional to 1,422,810.80, 2,133,486.60 and 425,409.20

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Solution

The fourth proportional to 1,422,810.80, 2,133,486.60 and 425,409.20 is: 637,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,810.80 : 2,133,486.60 = 425,409.20 : x
  2. Step 2: Convert to fraction form
    1,422,810.80/2,133,486.60 = 425,409.20/x
  3. Step 3: Cross multiply
    1,422,810.80x = 2,133,486.60 × 425,409.20
  4. Step 4: Simplify right side
    1,422,810.80x = 907,604,827,716.72
  5. Step 5: Solve for x
    x = 907,604,827,716.72/1,422,810.80
  6. Step 6: Final answer
    x = 637,895.66

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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.