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Finding the Fourth Proportional to 610,699.77, 842,866.73 and 338,855.27

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Solution

The fourth proportional to 610,699.77, 842,866.73 and 338,855.27 is: 467,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,699.77 : 842,866.73 = 338,855.27 : x
  2. Step 2: Convert to fraction form
    610,699.77/842,866.73 = 338,855.27/x
  3. Step 3: Cross multiply
    610,699.77x = 842,866.73 × 338,855.27
  4. Step 4: Simplify right side
    610,699.77x = 285,609,827,459.56
  5. Step 5: Solve for x
    x = 285,609,827,459.56/610,699.77
  6. Step 6: Final answer
    x = 467,676.33

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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.