Home / 455,185.60-682,778.40-452,561.20

Finding the Fourth Proportional to 455,185.60, 682,778.40 and 452,561.20

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Solution

The fourth proportional to 455,185.60, 682,778.40 and 452,561.20 is: 678,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,185.60 : 682,778.40 = 452,561.20 : x
  2. Step 2: Convert to fraction form
    455,185.60/682,778.40 = 452,561.20/x
  3. Step 3: Cross multiply
    455,185.60x = 682,778.40 × 452,561.20
  4. Step 4: Simplify right side
    455,185.60x = 308,999,012,038.08
  5. Step 5: Solve for x
    x = 308,999,012,038.08/455,185.60
  6. Step 6: Final answer
    x = 678,841.80

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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.