Home / 873,362.40-1,309,251.60-312,266.40

Finding the Fourth Proportional to 873,362.40, 1,309,251.60 and 312,266.40

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Solution

The fourth proportional to 873,362.40, 1,309,251.60 and 312,266.40 is: 468,116.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,362.40 : 1,309,251.60 = 312,266.40 : x
  2. Step 2: Convert to fraction form
    873,362.40/1,309,251.60 = 312,266.40/x
  3. Step 3: Cross multiply
    873,362.40x = 1,309,251.60 × 312,266.40
  4. Step 4: Simplify right side
    873,362.40x = 408,835,283,826.24
  5. Step 5: Solve for x
    x = 408,835,283,826.24/873,362.40
  6. Step 6: Final answer
    x = 468,116.42

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1.5x scale

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.