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Finding the Fourth Proportional to 630,363.33, 869,915.21 and 343,883.18

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Solution

The fourth proportional to 630,363.33, 869,915.21 and 343,883.18 is: 474,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,363.33 : 869,915.21 = 343,883.18 : x
  2. Step 2: Convert to fraction form
    630,363.33/869,915.21 = 343,883.18/x
  3. Step 3: Cross multiply
    630,363.33x = 869,915.21 × 343,883.18
  4. Step 4: Simplify right side
    630,363.33x = 299,149,209,200.54
  5. Step 5: Solve for x
    x = 299,149,209,200.54/630,363.33
  6. Step 6: Final answer
    x = 474,566.33

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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.