Home / 1,423,021.80-2,133,803.10-425,620.20

Finding the Fourth Proportional to 1,423,021.80, 2,133,803.10 and 425,620.20

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Solution

The fourth proportional to 1,423,021.80, 2,133,803.10 and 425,620.20 is: 638,212.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,021.80 : 2,133,803.10 = 425,620.20 : x
  2. Step 2: Convert to fraction form
    1,423,021.80/2,133,803.10 = 425,620.20/x
  3. Step 3: Cross multiply
    1,423,021.80x = 2,133,803.10 × 425,620.20
  4. Step 4: Simplify right side
    1,423,021.80x = 908,189,702,182.62
  5. Step 5: Solve for x
    x = 908,189,702,182.62/1,423,021.80
  6. Step 6: Final answer
    x = 638,212.08

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1.5x scale

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.