Home / 761,481.60-1,141,214.40-405,729.60

Finding the Fourth Proportional to 761,481.60, 1,141,214.40 and 405,729.60

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Solution

The fourth proportional to 761,481.60, 1,141,214.40 and 405,729.60 is: 608,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,481.60 : 1,141,214.40 = 405,729.60 : x
  2. Step 2: Convert to fraction form
    761,481.60/1,141,214.40 = 405,729.60/x
  3. Step 3: Cross multiply
    761,481.60x = 1,141,214.40 × 405,729.60
  4. Step 4: Simplify right side
    761,481.60x = 463,024,462,026.24
  5. Step 5: Solve for x
    x = 463,024,462,026.24/761,481.60
  6. Step 6: Final answer
    x = 608,057.32

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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.