Home / 738,899.31-1,019,738.82-412,315.01

Finding the Fourth Proportional to 738,899.31, 1,019,738.82 and 412,315.01

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Solution

The fourth proportional to 738,899.31, 1,019,738.82 and 412,315.01 is: 569,026.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,899.31 : 1,019,738.82 = 412,315.01 : x
  2. Step 2: Convert to fraction form
    738,899.31/1,019,738.82 = 412,315.01/x
  3. Step 3: Cross multiply
    738,899.31x = 1,019,738.82 × 412,315.01
  4. Step 4: Simplify right side
    738,899.31x = 420,453,619,717.92
  5. Step 5: Solve for x
    x = 420,453,619,717.92/738,899.31
  6. Step 6: Final answer
    x = 569,026.95

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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.