Home / 810,387.49-1,215,628.79-304,952.77

Finding the Fourth Proportional to 810,387.49, 1,215,628.79 and 304,952.77

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Solution

The fourth proportional to 810,387.49, 1,215,628.79 and 304,952.77 is: 457,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,387.49 : 1,215,628.79 = 304,952.77 : x
  2. Step 2: Convert to fraction form
    810,387.49/1,215,628.79 = 304,952.77/x
  3. Step 3: Cross multiply
    810,387.49x = 1,215,628.79 × 304,952.77
  4. Step 4: Simplify right side
    810,387.49x = 370,709,366,802.25
  5. Step 5: Solve for x
    x = 370,709,366,802.25/810,387.49
  6. Step 6: Final answer
    x = 457,447.05

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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.