Home / 804,802.40-1,207,203.60-405,288.80

Finding the Fourth Proportional to 804,802.40, 1,207,203.60 and 405,288.80

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Solution

The fourth proportional to 804,802.40, 1,207,203.60 and 405,288.80 is: 607,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,802.40 : 1,207,203.60 = 405,288.80 : x
  2. Step 2: Convert to fraction form
    804,802.40/1,207,203.60 = 405,288.80/x
  3. Step 3: Cross multiply
    804,802.40x = 1,207,203.60 × 405,288.80
  4. Step 4: Simplify right side
    804,802.40x = 489,266,098,399.68
  5. Step 5: Solve for x
    x = 489,266,098,399.68/804,802.40
  6. Step 6: Final answer
    x = 607,933.20

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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.