Home / 2,138,040-2,950,542.84-1,220,250.72

Finding the Fourth Proportional to 2,138,040, 2,950,542.84 and 1,220,250.72

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Solution

The fourth proportional to 2,138,040, 2,950,542.84 and 1,220,250.72 is: 1,683,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,040 : 2,950,542.84 = 1,220,250.72 : x
  2. Step 2: Convert to fraction form
    2,138,040/2,950,542.84 = 1,220,250.72/x
  3. Step 3: Cross multiply
    2,138,040x = 2,950,542.84 × 1,220,250.72
  4. Step 4: Simplify right side
    2,138,040x = 3,600,402,024,900.85
  5. Step 5: Solve for x
    x = 3,600,402,024,900.85/2,138,040
  6. Step 6: Final answer
    x = 1,683,973.18

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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.