Home / 890,477.54-1,228,860.05-482,579.36

Finding the Fourth Proportional to 890,477.54, 1,228,860.05 and 482,579.36

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Solution

The fourth proportional to 890,477.54, 1,228,860.05 and 482,579.36 is: 665,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,477.54 : 1,228,860.05 = 482,579.36 : x
  2. Step 2: Convert to fraction form
    890,477.54/1,228,860.05 = 482,579.36/x
  3. Step 3: Cross multiply
    890,477.54x = 1,228,860.05 × 482,579.36
  4. Step 4: Simplify right side
    890,477.54x = 593,022,499,413.16
  5. Step 5: Solve for x
    x = 593,022,499,413.16/890,477.54
  6. Step 6: Final answer
    x = 665,960.08

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Double scale
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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.