Home / 854,029.60-1,280,169.60-498,860.80

Finding the Fourth Proportional to 854,029.60, 1,280,169.60 and 498,860.80

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Solution

The fourth proportional to 854,029.60, 1,280,169.60 and 498,860.80 is: 747,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,029.60 : 1,280,169.60 = 498,860.80 : x
  2. Step 2: Convert to fraction form
    854,029.60/1,280,169.60 = 498,860.80/x
  3. Step 3: Cross multiply
    854,029.60x = 1,280,169.60 × 498,860.80
  4. Step 4: Simplify right side
    854,029.60x = 638,626,430,791.68
  5. Step 5: Solve for x
    x = 638,626,430,791.68/854,029.60
  6. Step 6: Final answer
    x = 747,780.21

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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.