Home / 877,054.38-1,315,581.62-212,206.38

Finding the Fourth Proportional to 877,054.38, 1,315,581.62 and 212,206.38

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Solution

The fourth proportional to 877,054.38, 1,315,581.62 and 212,206.38 is: 318,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,054.38 : 1,315,581.62 = 212,206.38 : x
  2. Step 2: Convert to fraction form
    877,054.38/1,315,581.62 = 212,206.38/x
  3. Step 3: Cross multiply
    877,054.38x = 1,315,581.62 × 212,206.38
  4. Step 4: Simplify right side
    877,054.38x = 279,174,813,174.74
  5. Step 5: Solve for x
    x = 279,174,813,174.74/877,054.38
  6. Step 6: Final answer
    x = 318,309.58

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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.