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Finding the Fourth Proportional to 610,505.13, 842,550.36 and 355,850.85

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Solution

The fourth proportional to 610,505.13, 842,550.36 and 355,850.85 is: 491,105.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,505.13 : 842,550.36 = 355,850.85 : x
  2. Step 2: Convert to fraction form
    610,505.13/842,550.36 = 355,850.85/x
  3. Step 3: Cross multiply
    610,505.13x = 842,550.36 × 355,850.85
  4. Step 4: Simplify right side
    610,505.13x = 299,822,261,773.81
  5. Step 5: Solve for x
    x = 299,822,261,773.81/610,505.13
  6. Step 6: Final answer
    x = 491,105.23

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1.5x scale

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.