Home / 804,905.60-1,205,608.80-488,811.20

Finding the Fourth Proportional to 804,905.60, 1,205,608.80 and 488,811.20

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Solution

The fourth proportional to 804,905.60, 1,205,608.80 and 488,811.20 is: 732,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,905.60 : 1,205,608.80 = 488,811.20 : x
  2. Step 2: Convert to fraction form
    804,905.60/1,205,608.80 = 488,811.20/x
  3. Step 3: Cross multiply
    804,905.60x = 1,205,608.80 × 488,811.20
  4. Step 4: Simplify right side
    804,905.60x = 589,315,084,258.56
  5. Step 5: Solve for x
    x = 589,315,084,258.56/804,905.60
  6. Step 6: Final answer
    x = 732,154.29

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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.