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Finding the Fourth Proportional to 777,347.56, 1,166,643.42 and 403,477.48

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Solution

The fourth proportional to 777,347.56, 1,166,643.42 and 403,477.48 is: 605,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,347.56 : 1,166,643.42 = 403,477.48 : x
  2. Step 2: Convert to fraction form
    777,347.56/1,166,643.42 = 403,477.48/x
  3. Step 3: Cross multiply
    777,347.56x = 1,166,643.42 × 403,477.48
  4. Step 4: Simplify right side
    777,347.56x = 470,714,344,243.57
  5. Step 5: Solve for x
    x = 470,714,344,243.57/777,347.56
  6. Step 6: Final answer
    x = 605,539.11

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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.