Home / 804,577.40-1,207,643.70-405,668.60

Finding the Fourth Proportional to 804,577.40, 1,207,643.70 and 405,668.60

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Solution

The fourth proportional to 804,577.40, 1,207,643.70 and 405,668.60 is: 608,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,577.40 : 1,207,643.70 = 405,668.60 : x
  2. Step 2: Convert to fraction form
    804,577.40/1,207,643.70 = 405,668.60/x
  3. Step 3: Cross multiply
    804,577.40x = 1,207,643.70 × 405,668.60
  4. Step 4: Simplify right side
    804,577.40x = 489,903,129,077.82
  5. Step 5: Solve for x
    x = 489,903,129,077.82/804,577.40
  6. Step 6: Final answer
    x = 608,894.97

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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.