Home / 1,220,104.40-1,830,156.60-378,741.20

Finding the Fourth Proportional to 1,220,104.40, 1,830,156.60 and 378,741.20

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Solution

The fourth proportional to 1,220,104.40, 1,830,156.60 and 378,741.20 is: 568,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,104.40 : 1,830,156.60 = 378,741.20 : x
  2. Step 2: Convert to fraction form
    1,220,104.40/1,830,156.60 = 378,741.20/x
  3. Step 3: Cross multiply
    1,220,104.40x = 1,830,156.60 × 378,741.20
  4. Step 4: Simplify right side
    1,220,104.40x = 693,155,706,871.92
  5. Step 5: Solve for x
    x = 693,155,706,871.92/1,220,104.40
  6. Step 6: Final answer
    x = 568,111.80

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Double scale
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Similar ratio
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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.