Home / 1,299,313.32-1,948,948.20-388,497.84

Finding the Fourth Proportional to 1,299,313.32, 1,948,948.20 and 388,497.84

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Solution

The fourth proportional to 1,299,313.32, 1,948,948.20 and 388,497.84 is: 582,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,313.32 : 1,948,948.20 = 388,497.84 : x
  2. Step 2: Convert to fraction form
    1,299,313.32/1,948,948.20 = 388,497.84/x
  3. Step 3: Cross multiply
    1,299,313.32x = 1,948,948.20 × 388,497.84
  4. Step 4: Simplify right side
    1,299,313.32x = 757,162,165,971.89
  5. Step 5: Solve for x
    x = 757,162,165,971.89/1,299,313.32
  6. Step 6: Final answer
    x = 582,740.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.