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Finding the Fourth Proportional to 1,795,792.56, 2,478,274.34 and 1,011,128.49

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Solution

The fourth proportional to 1,795,792.56, 2,478,274.34 and 1,011,128.49 is: 1,395,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795,792.56 : 2,478,274.34 = 1,011,128.49 : x
  2. Step 2: Convert to fraction form
    1,795,792.56/2,478,274.34 = 1,011,128.49/x
  3. Step 3: Cross multiply
    1,795,792.56x = 2,478,274.34 × 1,011,128.49
  4. Step 4: Simplify right side
    1,795,792.56x = 2,505,853,786,154.30
  5. Step 5: Solve for x
    x = 2,505,853,786,154.30/1,795,792.56
  6. Step 6: Final answer
    x = 1,395,402.70

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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.