Home / 804,912.60-1,205,619.30-488,818.20

Finding the Fourth Proportional to 804,912.60, 1,205,619.30 and 488,818.20

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Solution

The fourth proportional to 804,912.60, 1,205,619.30 and 488,818.20 is: 732,164.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,912.60 : 1,205,619.30 = 488,818.20 : x
  2. Step 2: Convert to fraction form
    804,912.60/1,205,619.30 = 488,818.20/x
  3. Step 3: Cross multiply
    804,912.60x = 1,205,619.30 × 488,818.20
  4. Step 4: Simplify right side
    804,912.60x = 589,328,656,111.26
  5. Step 5: Solve for x
    x = 589,328,656,111.26/804,912.60
  6. Step 6: Final answer
    x = 732,164.78

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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.