Home / 804,915.60-1,205,623.80-488,821.20

Finding the Fourth Proportional to 804,915.60, 1,205,623.80 and 488,821.20

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Solution

The fourth proportional to 804,915.60, 1,205,623.80 and 488,821.20 is: 732,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,915.60 : 1,205,623.80 = 488,821.20 : x
  2. Step 2: Convert to fraction form
    804,915.60/1,205,623.80 = 488,821.20/x
  3. Step 3: Cross multiply
    804,915.60x = 1,205,623.80 × 488,821.20
  4. Step 4: Simplify right side
    804,915.60x = 589,334,472,664.56
  5. Step 5: Solve for x
    x = 589,334,472,664.56/804,915.60
  6. Step 6: Final answer
    x = 732,169.28

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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.