Home / 1,380,285.36-2,070,437.76-481,723.20

Finding the Fourth Proportional to 1,380,285.36, 2,070,437.76 and 481,723.20

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Solution

The fourth proportional to 1,380,285.36, 2,070,437.76 and 481,723.20 is: 722,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,285.36 : 2,070,437.76 = 481,723.20 : x
  2. Step 2: Convert to fraction form
    1,380,285.36/2,070,437.76 = 481,723.20/x
  3. Step 3: Cross multiply
    1,380,285.36x = 2,070,437.76 × 481,723.20
  4. Step 4: Simplify right side
    1,380,285.36x = 997,377,903,148.03
  5. Step 5: Solve for x
    x = 997,377,903,148.03/1,380,285.36
  6. Step 6: Final answer
    x = 722,588.19

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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.