Home / 811,394.19-1,119,372.15-488,921.04

Finding the Fourth Proportional to 811,394.19, 1,119,372.15 and 488,921.04

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Solution

The fourth proportional to 811,394.19, 1,119,372.15 and 488,921.04 is: 674,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,394.19 : 1,119,372.15 = 488,921.04 : x
  2. Step 2: Convert to fraction form
    811,394.19/1,119,372.15 = 488,921.04/x
  3. Step 3: Cross multiply
    811,394.19x = 1,119,372.15 × 488,921.04
  4. Step 4: Simplify right side
    811,394.19x = 547,284,595,725.04
  5. Step 5: Solve for x
    x = 547,284,595,725.04/811,394.19
  6. Step 6: Final answer
    x = 674,499.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.