Home / 1,296,009.10-1,944,013.65-821,284.30

Finding the Fourth Proportional to 1,296,009.10, 1,944,013.65 and 821,284.30

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Solution

The fourth proportional to 1,296,009.10, 1,944,013.65 and 821,284.30 is: 1,231,926.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,009.10 : 1,944,013.65 = 821,284.30 : x
  2. Step 2: Convert to fraction form
    1,296,009.10/1,944,013.65 = 821,284.30/x
  3. Step 3: Cross multiply
    1,296,009.10x = 1,944,013.65 × 821,284.30
  4. Step 4: Simplify right side
    1,296,009.10x = 1,596,587,889,730.70
  5. Step 5: Solve for x
    x = 1,596,587,889,730.70/1,296,009.10
  6. Step 6: Final answer
    x = 1,231,926.45

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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.