Home / 2,138,026-2,950,523.40-1,220,236.78

Finding the Fourth Proportional to 2,138,026, 2,950,523.40 and 1,220,236.78

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Solution

The fourth proportional to 2,138,026, 2,950,523.40 and 1,220,236.78 is: 1,683,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,026 : 2,950,523.40 = 1,220,236.78 : x
  2. Step 2: Convert to fraction form
    2,138,026/2,950,523.40 = 1,220,236.78/x
  3. Step 3: Cross multiply
    2,138,026x = 2,950,523.40 × 1,220,236.78
  4. Step 4: Simplify right side
    2,138,026x = 3,600,337,172,930.65
  5. Step 5: Solve for x
    x = 3,600,337,172,930.65/2,138,026
  6. Step 6: Final answer
    x = 1,683,953.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.