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Finding the Fourth Proportional to 618,967.50, 854,132.38 and 343,299.34

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Solution

The fourth proportional to 618,967.50, 854,132.38 and 343,299.34 is: 473,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,967.50 : 854,132.38 = 343,299.34 : x
  2. Step 2: Convert to fraction form
    618,967.50/854,132.38 = 343,299.34/x
  3. Step 3: Cross multiply
    618,967.50x = 854,132.38 × 343,299.34
  4. Step 4: Simplify right side
    618,967.50x = 293,223,082,326.63
  5. Step 5: Solve for x
    x = 293,223,082,326.63/618,967.50
  6. Step 6: Final answer
    x = 473,729.37

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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.