Home / 1,422,389.60-2,133,891.60-425,218.40

Finding the Fourth Proportional to 1,422,389.60, 2,133,891.60 and 425,218.40

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Solution

The fourth proportional to 1,422,389.60, 2,133,891.60 and 425,218.40 is: 637,919.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,389.60 : 2,133,891.60 = 425,218.40 : x
  2. Step 2: Convert to fraction form
    1,422,389.60/2,133,891.60 = 425,218.40/x
  3. Step 3: Cross multiply
    1,422,389.60x = 2,133,891.60 × 425,218.40
  4. Step 4: Simplify right side
    1,422,389.60x = 907,369,971,925.44
  5. Step 5: Solve for x
    x = 907,369,971,925.44/1,422,389.60
  6. Step 6: Final answer
    x = 637,919.44

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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.