Home / 804,428.40-1,206,642.60-305,727.60

Finding the Fourth Proportional to 804,428.40, 1,206,642.60 and 305,727.60

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Solution

The fourth proportional to 804,428.40, 1,206,642.60 and 305,727.60 is: 458,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,428.40 : 1,206,642.60 = 305,727.60 : x
  2. Step 2: Convert to fraction form
    804,428.40/1,206,642.60 = 305,727.60/x
  3. Step 3: Cross multiply
    804,428.40x = 1,206,642.60 × 305,727.60
  4. Step 4: Simplify right side
    804,428.40x = 368,903,946,155.76
  5. Step 5: Solve for x
    x = 368,903,946,155.76/804,428.40
  6. Step 6: Final answer
    x = 458,591.40

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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.