Home / 873,340.40-1,309,218.60-312,244.40

Finding the Fourth Proportional to 873,340.40, 1,309,218.60 and 312,244.40

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Solution

The fourth proportional to 873,340.40, 1,309,218.60 and 312,244.40 is: 468,083.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,340.40 : 1,309,218.60 = 312,244.40 : x
  2. Step 2: Convert to fraction form
    873,340.40/1,309,218.60 = 312,244.40/x
  3. Step 3: Cross multiply
    873,340.40x = 1,309,218.60 × 312,244.40
  4. Step 4: Simplify right side
    873,340.40x = 408,796,176,225.84
  5. Step 5: Solve for x
    x = 408,796,176,225.84/873,340.40
  6. Step 6: Final answer
    x = 468,083.44

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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.