Home / 840,317.34-1,260,639.90-271,839.36

Finding the Fourth Proportional to 840,317.34, 1,260,639.90 and 271,839.36

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Solution

The fourth proportional to 840,317.34, 1,260,639.90 and 271,839.36 is: 407,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,317.34 : 1,260,639.90 = 271,839.36 : x
  2. Step 2: Convert to fraction form
    840,317.34/1,260,639.90 = 271,839.36/x
  3. Step 3: Cross multiply
    840,317.34x = 1,260,639.90 × 271,839.36
  4. Step 4: Simplify right side
    840,317.34x = 342,691,543,606.46
  5. Step 5: Solve for x
    x = 342,691,543,606.46/840,317.34
  6. Step 6: Final answer
    x = 407,812.06

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1.5x scale

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.