Home / 765,021.20-1,147,762.20-410,205.20

Finding the Fourth Proportional to 765,021.20, 1,147,762.20 and 410,205.20

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Solution

The fourth proportional to 765,021.20, 1,147,762.20 and 410,205.20 is: 615,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,021.20 : 1,147,762.20 = 410,205.20 : x
  2. Step 2: Convert to fraction form
    765,021.20/1,147,762.20 = 410,205.20/x
  3. Step 3: Cross multiply
    765,021.20x = 1,147,762.20 × 410,205.20
  4. Step 4: Simplify right side
    765,021.20x = 470,818,022,803.44
  5. Step 5: Solve for x
    x = 470,818,022,803.44/765,021.20
  6. Step 6: Final answer
    x = 615,431.34

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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.