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Finding the Fourth Proportional to 611,280.39, 843,524.63 and 339,326.79

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Solution

The fourth proportional to 611,280.39, 843,524.63 and 339,326.79 is: 468,247.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,280.39 : 843,524.63 = 339,326.79 : x
  2. Step 2: Convert to fraction form
    611,280.39/843,524.63 = 339,326.79/x
  3. Step 3: Cross multiply
    611,280.39x = 843,524.63 × 339,326.79
  4. Step 4: Simplify right side
    611,280.39x = 286,230,503,287.20
  5. Step 5: Solve for x
    x = 286,230,503,287.20/611,280.39
  6. Step 6: Final answer
    x = 468,247.48

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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.