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Finding the Fourth Proportional to 969,010.80, 1,453,343.40 and 613,388.40

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Solution

The fourth proportional to 969,010.80, 1,453,343.40 and 613,388.40 is: 919,973.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,010.80 : 1,453,343.40 = 613,388.40 : x
  2. Step 2: Convert to fraction form
    969,010.80/1,453,343.40 = 613,388.40/x
  3. Step 3: Cross multiply
    969,010.80x = 1,453,343.40 × 613,388.40
  4. Step 4: Simplify right side
    969,010.80x = 891,463,982,776.56
  5. Step 5: Solve for x
    x = 891,463,982,776.56/969,010.80
  6. Step 6: Final answer
    x = 919,973.22

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1.5x scale

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.