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Finding the Fourth Proportional to 587,244.81, 810,359.48 and 345,480.68

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Solution

The fourth proportional to 587,244.81, 810,359.48 and 345,480.68 is: 476,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,244.81 : 810,359.48 = 345,480.68 : x
  2. Step 2: Convert to fraction form
    587,244.81/810,359.48 = 345,480.68/x
  3. Step 3: Cross multiply
    587,244.81x = 810,359.48 × 345,480.68
  4. Step 4: Simplify right side
    587,244.81x = 279,963,538,415.65
  5. Step 5: Solve for x
    x = 279,963,538,415.65/587,244.81
  6. Step 6: Final answer
    x = 476,740.76

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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.