Home / 555,059.93-765,982.68-300,411.12

Finding the Fourth Proportional to 555,059.93, 765,982.68 and 300,411.12

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Solution

The fourth proportional to 555,059.93, 765,982.68 and 300,411.12 is: 414,567.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,059.93 : 765,982.68 = 300,411.12 : x
  2. Step 2: Convert to fraction form
    555,059.93/765,982.68 = 300,411.12/x
  3. Step 3: Cross multiply
    555,059.93x = 765,982.68 × 300,411.12
  4. Step 4: Simplify right side
    555,059.93x = 230,109,714,799.40
  5. Step 5: Solve for x
    x = 230,109,714,799.40/555,059.93
  6. Step 6: Final answer
    x = 414,567.34

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1.5x scale

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.