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Finding the Fourth Proportional to 618,852, 854,015.76 and 350,580

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Solution

The fourth proportional to 618,852, 854,015.76 and 350,580 is: 483,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,852 : 854,015.76 = 350,580 : x
  2. Step 2: Convert to fraction form
    618,852/854,015.76 = 350,580/x
  3. Step 3: Cross multiply
    618,852x = 854,015.76 × 350,580
  4. Step 4: Simplify right side
    618,852x = 299,400,845,140.80
  5. Step 5: Solve for x
    x = 299,400,845,140.80/618,852
  6. Step 6: Final answer
    x = 483,800.40

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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.