Home / 802,085.60-1,203,128.40-503,487.20

Finding the Fourth Proportional to 802,085.60, 1,203,128.40 and 503,487.20

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Solution

The fourth proportional to 802,085.60, 1,203,128.40 and 503,487.20 is: 755,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,085.60 : 1,203,128.40 = 503,487.20 : x
  2. Step 2: Convert to fraction form
    802,085.60/1,203,128.40 = 503,487.20/x
  3. Step 3: Cross multiply
    802,085.60x = 1,203,128.40 × 503,487.20
  4. Step 4: Simplify right side
    802,085.60x = 605,759,749,356.48
  5. Step 5: Solve for x
    x = 605,759,749,356.48/802,085.60
  6. Step 6: Final answer
    x = 755,230.80

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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.