Home / 1,207,739.25-1,811,567.10-309,188.70

Finding the Fourth Proportional to 1,207,739.25, 1,811,567.10 and 309,188.70

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Solution

The fourth proportional to 1,207,739.25, 1,811,567.10 and 309,188.70 is: 463,772.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,739.25 : 1,811,567.10 = 309,188.70 : x
  2. Step 2: Convert to fraction form
    1,207,739.25/1,811,567.10 = 309,188.70/x
  3. Step 3: Cross multiply
    1,207,739.25x = 1,811,567.10 × 309,188.70
  4. Step 4: Simplify right side
    1,207,739.25x = 560,116,076,611.77
  5. Step 5: Solve for x
    x = 560,116,076,611.77/1,207,739.25
  6. Step 6: Final answer
    x = 463,772.36

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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.