Home / 872,977.62-1,309,084.63-440,428.89

Finding the Fourth Proportional to 872,977.62, 1,309,084.63 and 440,428.89

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Solution

The fourth proportional to 872,977.62, 1,309,084.63 and 440,428.89 is: 660,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,977.62 : 1,309,084.63 = 440,428.89 : x
  2. Step 2: Convert to fraction form
    872,977.62/1,309,084.63 = 440,428.89/x
  3. Step 3: Cross multiply
    872,977.62x = 1,309,084.63 × 440,428.89
  4. Step 4: Simplify right side
    872,977.62x = 576,558,694,314.96
  5. Step 5: Solve for x
    x = 576,558,694,314.96/872,977.62
  6. Step 6: Final answer
    x = 660,450.71

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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.