Home / 1,215,806.40-1,823,711.04-317,247.48

Finding the Fourth Proportional to 1,215,806.40, 1,823,711.04 and 317,247.48

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Solution

The fourth proportional to 1,215,806.40, 1,823,711.04 and 317,247.48 is: 475,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,806.40 : 1,823,711.04 = 317,247.48 : x
  2. Step 2: Convert to fraction form
    1,215,806.40/1,823,711.04 = 317,247.48/x
  3. Step 3: Cross multiply
    1,215,806.40x = 1,823,711.04 × 317,247.48
  4. Step 4: Simplify right side
    1,215,806.40x = 578,567,731,688.18
  5. Step 5: Solve for x
    x = 578,567,731,688.18/1,215,806.40
  6. Step 6: Final answer
    x = 475,871.60

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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.