Home / 1,205,636.40-1,805,830.20-731,494.80

Finding the Fourth Proportional to 1,205,636.40, 1,805,830.20 and 731,494.80

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Solution

The fourth proportional to 1,205,636.40, 1,805,830.20 and 731,494.80 is: 1,095,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,636.40 : 1,805,830.20 = 731,494.80 : x
  2. Step 2: Convert to fraction form
    1,205,636.40/1,805,830.20 = 731,494.80/x
  3. Step 3: Cross multiply
    1,205,636.40x = 1,805,830.20 × 731,494.80
  4. Step 4: Simplify right side
    1,205,636.40x = 1,320,955,400,982.96
  5. Step 5: Solve for x
    x = 1,320,955,400,982.96/1,205,636.40
  6. Step 6: Final answer
    x = 1,095,649.90

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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.