Home / 742,405.76-1,024,959.96-488,195.36

Finding the Fourth Proportional to 742,405.76, 1,024,959.96 and 488,195.36

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Solution

The fourth proportional to 742,405.76, 1,024,959.96 and 488,195.36 is: 673,998.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,405.76 : 1,024,959.96 = 488,195.36 : x
  2. Step 2: Convert to fraction form
    742,405.76/1,024,959.96 = 488,195.36/x
  3. Step 3: Cross multiply
    742,405.76x = 1,024,959.96 × 488,195.36
  4. Step 4: Simplify right side
    742,405.76x = 500,380,696,657.79
  5. Step 5: Solve for x
    x = 500,380,696,657.79/742,405.76
  6. Step 6: Final answer
    x = 673,998.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.