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Finding the Fourth Proportional to 610,610.83, 842,091.36 and 381,189.32

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Solution

The fourth proportional to 610,610.83, 842,091.36 and 381,189.32 is: 525,696.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,610.83 : 842,091.36 = 381,189.32 : x
  2. Step 2: Convert to fraction form
    610,610.83/842,091.36 = 381,189.32/x
  3. Step 3: Cross multiply
    610,610.83x = 842,091.36 × 381,189.32
  4. Step 4: Simplify right side
    610,610.83x = 320,996,231,262.10
  5. Step 5: Solve for x
    x = 320,996,231,262.10/610,610.83
  6. Step 6: Final answer
    x = 525,696.92

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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.