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Finding the Fourth Proportional to 873,655.67, 1,310,670.60 and 494,755.49

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Solution

The fourth proportional to 873,655.67, 1,310,670.60 and 494,755.49 is: 742,239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,655.67 : 1,310,670.60 = 494,755.49 : x
  2. Step 2: Convert to fraction form
    873,655.67/1,310,670.60 = 494,755.49/x
  3. Step 3: Cross multiply
    873,655.67x = 1,310,670.60 × 494,755.49
  4. Step 4: Simplify right side
    873,655.67x = 648,461,474,931.59
  5. Step 5: Solve for x
    x = 648,461,474,931.59/873,655.67
  6. Step 6: Final answer
    x = 742,239.19

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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.