Home / 762,866.20-1,144,817.70-425,906.20

Finding the Fourth Proportional to 762,866.20, 1,144,817.70 and 425,906.20

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Solution

The fourth proportional to 762,866.20, 1,144,817.70 and 425,906.20 is: 639,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,866.20 : 1,144,817.70 = 425,906.20 : x
  2. Step 2: Convert to fraction form
    762,866.20/1,144,817.70 = 425,906.20/x
  3. Step 3: Cross multiply
    762,866.20x = 1,144,817.70 × 425,906.20
  4. Step 4: Simplify right side
    762,866.20x = 487,584,956,299.74
  5. Step 5: Solve for x
    x = 487,584,956,299.74/762,866.20
  6. Step 6: Final answer
    x = 639,148.72

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1.5x scale

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.