Home / 495,434.19-683,676.30-280,575.80

Finding the Fourth Proportional to 495,434.19, 683,676.30 and 280,575.80

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Solution

The fourth proportional to 495,434.19, 683,676.30 and 280,575.80 is: 387,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,434.19 : 683,676.30 = 280,575.80 : x
  2. Step 2: Convert to fraction form
    495,434.19/683,676.30 = 280,575.80/x
  3. Step 3: Cross multiply
    495,434.19x = 683,676.30 × 280,575.80
  4. Step 4: Simplify right side
    495,434.19x = 191,823,023,432.87
  5. Step 5: Solve for x
    x = 191,823,023,432.87/495,434.19
  6. Step 6: Final answer
    x = 387,181.64

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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.