Home / 1,422,300.60-2,133,758.10-425,129.40

Finding the Fourth Proportional to 1,422,300.60, 2,133,758.10 and 425,129.40

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Solution

The fourth proportional to 1,422,300.60, 2,133,758.10 and 425,129.40 is: 637,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,300.60 : 2,133,758.10 = 425,129.40 : x
  2. Step 2: Convert to fraction form
    1,422,300.60/2,133,758.10 = 425,129.40/x
  3. Step 3: Cross multiply
    1,422,300.60x = 2,133,758.10 × 425,129.40
  4. Step 4: Simplify right side
    1,422,300.60x = 907,123,300,798.14
  5. Step 5: Solve for x
    x = 907,123,300,798.14/1,422,300.60
  6. Step 6: Final answer
    x = 637,785.92

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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.