Home / 1,422,329.60-2,133,801.60-425,158.40

Finding the Fourth Proportional to 1,422,329.60, 2,133,801.60 and 425,158.40

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Solution

The fourth proportional to 1,422,329.60, 2,133,801.60 and 425,158.40 is: 637,829.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,329.60 : 2,133,801.60 = 425,158.40 : x
  2. Step 2: Convert to fraction form
    1,422,329.60/2,133,801.60 = 425,158.40/x
  3. Step 3: Cross multiply
    1,422,329.60x = 2,133,801.60 × 425,158.40
  4. Step 4: Simplify right side
    1,422,329.60x = 907,203,674,173.44
  5. Step 5: Solve for x
    x = 907,203,674,173.44/1,422,329.60
  6. Step 6: Final answer
    x = 637,829.43

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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.