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Finding the Fourth Proportional to 480,519.87, 663,007.44 and 286,889.97

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Solution

The fourth proportional to 480,519.87, 663,007.44 and 286,889.97 is: 395,842.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,519.87 : 663,007.44 = 286,889.97 : x
  2. Step 2: Convert to fraction form
    480,519.87/663,007.44 = 286,889.97/x
  3. Step 3: Cross multiply
    480,519.87x = 663,007.44 × 286,889.97
  4. Step 4: Simplify right side
    480,519.87x = 190,210,184,571.38
  5. Step 5: Solve for x
    x = 190,210,184,571.38/480,519.87
  6. Step 6: Final answer
    x = 395,842.50

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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.