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Finding the Fourth Proportional to 569,160.36, 785,452.56 and 311,053.28

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Solution

The fourth proportional to 569,160.36, 785,452.56 and 311,053.28 is: 429,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,160.36 : 785,452.56 = 311,053.28 : x
  2. Step 2: Convert to fraction form
    569,160.36/785,452.56 = 311,053.28/x
  3. Step 3: Cross multiply
    569,160.36x = 785,452.56 × 311,053.28
  4. Step 4: Simplify right side
    569,160.36x = 244,317,591,145.13
  5. Step 5: Solve for x
    x = 244,317,591,145.13/569,160.36
  6. Step 6: Final answer
    x = 429,259.67

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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.