Home / 839,792.65-1,260,416.89-440,715.37

Finding the Fourth Proportional to 839,792.65, 1,260,416.89 and 440,715.37

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Solution

The fourth proportional to 839,792.65, 1,260,416.89 and 440,715.37 is: 661,455.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,792.65 : 1,260,416.89 = 440,715.37 : x
  2. Step 2: Convert to fraction form
    839,792.65/1,260,416.89 = 440,715.37/x
  3. Step 3: Cross multiply
    839,792.65x = 1,260,416.89 × 440,715.37
  4. Step 4: Simplify right side
    839,792.65x = 555,485,096,030.60
  5. Step 5: Solve for x
    x = 555,485,096,030.60/839,792.65
  6. Step 6: Final answer
    x = 661,455.06

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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.