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Finding the Fourth Proportional to 468,656.40, 702,984.60 and 343,318.80

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Solution

The fourth proportional to 468,656.40, 702,984.60 and 343,318.80 is: 514,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,656.40 : 702,984.60 = 343,318.80 : x
  2. Step 2: Convert to fraction form
    468,656.40/702,984.60 = 343,318.80/x
  3. Step 3: Cross multiply
    468,656.40x = 702,984.60 × 343,318.80
  4. Step 4: Simplify right side
    468,656.40x = 241,347,829,290.48
  5. Step 5: Solve for x
    x = 241,347,829,290.48/468,656.40
  6. Step 6: Final answer
    x = 514,978.20

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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.