Home / 1,788,009.10-2,682,013.65-778,271.20

Finding the Fourth Proportional to 1,788,009.10, 2,682,013.65 and 778,271.20

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Solution

The fourth proportional to 1,788,009.10, 2,682,013.65 and 778,271.20 is: 1,167,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,009.10 : 2,682,013.65 = 778,271.20 : x
  2. Step 2: Convert to fraction form
    1,788,009.10/2,682,013.65 = 778,271.20/x
  3. Step 3: Cross multiply
    1,788,009.10x = 2,682,013.65 × 778,271.20
  4. Step 4: Simplify right side
    1,788,009.10x = 2,087,333,981,801.88
  5. Step 5: Solve for x
    x = 2,087,333,981,801.88/1,788,009.10
  6. Step 6: Final answer
    x = 1,167,406.80

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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.