Home / 2,190,011.76-3,021,917.58-1,223,018.76

Finding the Fourth Proportional to 2,190,011.76, 3,021,917.58 and 1,223,018.76

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Solution

The fourth proportional to 2,190,011.76, 3,021,917.58 and 1,223,018.76 is: 1,687,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,011.76 : 3,021,917.58 = 1,223,018.76 : x
  2. Step 2: Convert to fraction form
    2,190,011.76/3,021,917.58 = 1,223,018.76/x
  3. Step 3: Cross multiply
    2,190,011.76x = 3,021,917.58 × 1,223,018.76
  4. Step 4: Simplify right side
    2,190,011.76x = 3,695,861,891,513.80
  5. Step 5: Solve for x
    x = 3,695,861,891,513.80/2,190,011.76
  6. Step 6: Final answer
    x = 1,687,599.11

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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.