Home / 1,921,113.16-2,882,167.47-1,021,814.68

Finding the Fourth Proportional to 1,921,113.16, 2,882,167.47 and 1,021,814.68

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Solution

The fourth proportional to 1,921,113.16, 2,882,167.47 and 1,021,814.68 is: 1,532,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,113.16 : 2,882,167.47 = 1,021,814.68 : x
  2. Step 2: Convert to fraction form
    1,921,113.16/2,882,167.47 = 1,021,814.68/x
  3. Step 3: Cross multiply
    1,921,113.16x = 2,882,167.47 × 1,021,814.68
  4. Step 4: Simplify right side
    1,921,113.16x = 2,945,041,031,064.46
  5. Step 5: Solve for x
    x = 2,945,041,031,064.46/1,921,113.16
  6. Step 6: Final answer
    x = 1,532,986.76

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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.