Home / 1,661,045.30-2,491,567.95-821,237.30

Finding the Fourth Proportional to 1,661,045.30, 2,491,567.95 and 821,237.30

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Solution

The fourth proportional to 1,661,045.30, 2,491,567.95 and 821,237.30 is: 1,231,855.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,045.30 : 2,491,567.95 = 821,237.30 : x
  2. Step 2: Convert to fraction form
    1,661,045.30/2,491,567.95 = 821,237.30/x
  3. Step 3: Cross multiply
    1,661,045.30x = 2,491,567.95 × 821,237.30
  4. Step 4: Simplify right side
    1,661,045.30x = 2,046,168,536,024.54
  5. Step 5: Solve for x
    x = 2,046,168,536,024.54/1,661,045.30
  6. Step 6: Final answer
    x = 1,231,855.95

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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.