Home / 850,404.60-1,275,606.90-425,251.80

Finding the Fourth Proportional to 850,404.60, 1,275,606.90 and 425,251.80

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Solution

The fourth proportional to 850,404.60, 1,275,606.90 and 425,251.80 is: 637,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,404.60 : 1,275,606.90 = 425,251.80 : x
  2. Step 2: Convert to fraction form
    850,404.60/1,275,606.90 = 425,251.80/x
  3. Step 3: Cross multiply
    850,404.60x = 1,275,606.90 × 425,251.80
  4. Step 4: Simplify right side
    850,404.60x = 542,454,130,317.42
  5. Step 5: Solve for x
    x = 542,454,130,317.42/850,404.60
  6. Step 6: Final answer
    x = 637,877.70

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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.