Home / 1,074,655.76-1,483,389.09-666,996.21

Finding the Fourth Proportional to 1,074,655.76, 1,483,389.09 and 666,996.21

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Solution

The fourth proportional to 1,074,655.76, 1,483,389.09 and 666,996.21 is: 920,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074,655.76 : 1,483,389.09 = 666,996.21 : x
  2. Step 2: Convert to fraction form
    1,074,655.76/1,483,389.09 = 666,996.21/x
  3. Step 3: Cross multiply
    1,074,655.76x = 1,483,389.09 × 666,996.21
  4. Step 4: Simplify right side
    1,074,655.76x = 989,414,900,985.35
  5. Step 5: Solve for x
    x = 989,414,900,985.35/1,074,655.76
  6. Step 6: Final answer
    x = 920,680.78

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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.