Home / 810,667.46-1,118,725.61-443,145.21

Finding the Fourth Proportional to 810,667.46, 1,118,725.61 and 443,145.21

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Solution

The fourth proportional to 810,667.46, 1,118,725.61 and 443,145.21 is: 611,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,667.46 : 1,118,725.61 = 443,145.21 : x
  2. Step 2: Convert to fraction form
    810,667.46/1,118,725.61 = 443,145.21/x
  3. Step 3: Cross multiply
    810,667.46x = 1,118,725.61 × 443,145.21
  4. Step 4: Simplify right side
    810,667.46x = 495,757,893,160.10
  5. Step 5: Solve for x
    x = 495,757,893,160.10/810,667.46
  6. Step 6: Final answer
    x = 611,542.86

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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.