Home / 816,314.34-1,224,483.96-310,903.38

Finding the Fourth Proportional to 816,314.34, 1,224,483.96 and 310,903.38

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Solution

The fourth proportional to 816,314.34, 1,224,483.96 and 310,903.38 is: 466,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,314.34 : 1,224,483.96 = 310,903.38 : x
  2. Step 2: Convert to fraction form
    816,314.34/1,224,483.96 = 310,903.38/x
  3. Step 3: Cross multiply
    816,314.34x = 1,224,483.96 × 310,903.38
  4. Step 4: Simplify right side
    816,314.34x = 380,696,201,919.79
  5. Step 5: Solve for x
    x = 380,696,201,919.79/816,314.34
  6. Step 6: Final answer
    x = 466,359.81

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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.