Home / 1,220,349.40-1,830,504.48-378,901.96

Finding the Fourth Proportional to 1,220,349.40, 1,830,504.48 and 378,901.96

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Solution

The fourth proportional to 1,220,349.40, 1,830,504.48 and 378,901.96 is: 568,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,349.40 : 1,830,504.48 = 378,901.96 : x
  2. Step 2: Convert to fraction form
    1,220,349.40/1,830,504.48 = 378,901.96/x
  3. Step 3: Cross multiply
    1,220,349.40x = 1,830,504.48 × 378,901.96
  4. Step 4: Simplify right side
    1,220,349.40x = 693,581,735,260.78
  5. Step 5: Solve for x
    x = 693,581,735,260.78/1,220,349.40
  6. Step 6: Final answer
    x = 568,346.85

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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.