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Finding the Fourth Proportional to 485,796.92, 670,400.93 and 270,950.90

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Solution

The fourth proportional to 485,796.92, 670,400.93 and 270,950.90 is: 373,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,796.92 : 670,400.93 = 270,950.90 : x
  2. Step 2: Convert to fraction form
    485,796.92/670,400.93 = 270,950.90/x
  3. Step 3: Cross multiply
    485,796.92x = 670,400.93 × 270,950.90
  4. Step 4: Simplify right side
    485,796.92x = 181,645,732,669.71
  5. Step 5: Solve for x
    x = 181,645,732,669.71/485,796.92
  6. Step 6: Final answer
    x = 373,912.90

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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.