Home / 1,054,410.30-1,581,615.45-485,790.30

Finding the Fourth Proportional to 1,054,410.30, 1,581,615.45 and 485,790.30

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Solution

The fourth proportional to 1,054,410.30, 1,581,615.45 and 485,790.30 is: 728,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,410.30 : 1,581,615.45 = 485,790.30 : x
  2. Step 2: Convert to fraction form
    1,054,410.30/1,581,615.45 = 485,790.30/x
  3. Step 3: Cross multiply
    1,054,410.30x = 1,581,615.45 × 485,790.30
  4. Step 4: Simplify right side
    1,054,410.30x = 768,333,443,940.14
  5. Step 5: Solve for x
    x = 768,333,443,940.14/1,054,410.30
  6. Step 6: Final answer
    x = 728,685.45

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Double scale
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Similar ratio
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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.