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Finding the Fourth Proportional to 873,656.67, 1,310,672.10 and 494,756.49

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Solution

The fourth proportional to 873,656.67, 1,310,672.10 and 494,756.49 is: 742,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,656.67 : 1,310,672.10 = 494,756.49 : x
  2. Step 2: Convert to fraction form
    873,656.67/1,310,672.10 = 494,756.49/x
  3. Step 3: Cross multiply
    873,656.67x = 1,310,672.10 × 494,756.49
  4. Step 4: Simplify right side
    873,656.67x = 648,463,527,736.93
  5. Step 5: Solve for x
    x = 648,463,527,736.93/873,656.67
  6. Step 6: Final answer
    x = 742,240.69

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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.