Home / 1,050,019.71-1,448,648.30-687,650.21

Finding the Fourth Proportional to 1,050,019.71, 1,448,648.30 and 687,650.21

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Solution

The fourth proportional to 1,050,019.71, 1,448,648.30 and 687,650.21 is: 948,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050,019.71 : 1,448,648.30 = 687,650.21 : x
  2. Step 2: Convert to fraction form
    1,050,019.71/1,448,648.30 = 687,650.21/x
  3. Step 3: Cross multiply
    1,050,019.71x = 1,448,648.30 × 687,650.21
  4. Step 4: Simplify right side
    1,050,019.71x = 996,163,303,751.43
  5. Step 5: Solve for x
    x = 996,163,303,751.43/1,050,019.71
  6. Step 6: Final answer
    x = 948,709.15

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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.