Home / 1,428,038.10-2,140,562.70-481,081.68

Finding the Fourth Proportional to 1,428,038.10, 2,140,562.70 and 481,081.68

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Solution

The fourth proportional to 1,428,038.10, 2,140,562.70 and 481,081.68 is: 721,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,038.10 : 2,140,562.70 = 481,081.68 : x
  2. Step 2: Convert to fraction form
    1,428,038.10/2,140,562.70 = 481,081.68/x
  3. Step 3: Cross multiply
    1,428,038.10x = 2,140,562.70 × 481,081.68
  4. Step 4: Simplify right side
    1,428,038.10x = 1,029,785,499,861.34
  5. Step 5: Solve for x
    x = 1,029,785,499,861.34/1,428,038.10
  6. Step 6: Final answer
    x = 721,119.07

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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.