Home / 1,815,510.30-2,723,265.45-485,814.30

Finding the Fourth Proportional to 1,815,510.30, 2,723,265.45 and 485,814.30

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Solution

The fourth proportional to 1,815,510.30, 2,723,265.45 and 485,814.30 is: 728,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,510.30 : 2,723,265.45 = 485,814.30 : x
  2. Step 2: Convert to fraction form
    1,815,510.30/2,723,265.45 = 485,814.30/x
  3. Step 3: Cross multiply
    1,815,510.30x = 2,723,265.45 × 485,814.30
  4. Step 4: Simplify right side
    1,815,510.30x = 1,323,001,298,305.94
  5. Step 5: Solve for x
    x = 1,323,001,298,305.94/1,815,510.30
  6. Step 6: Final answer
    x = 728,721.45

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Double scale
Find fourth proportional to 1,815,511.30, 2,723,266.95 and 485,815.30
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.