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Finding the Fourth Proportional to 552,208.40, 828,312.60 and 353,142.80

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Solution

The fourth proportional to 552,208.40, 828,312.60 and 353,142.80 is: 529,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,208.40 : 828,312.60 = 353,142.80 : x
  2. Step 2: Convert to fraction form
    552,208.40/828,312.60 = 353,142.80/x
  3. Step 3: Cross multiply
    552,208.40x = 828,312.60 × 353,142.80
  4. Step 4: Simplify right side
    552,208.40x = 292,512,630,839.28
  5. Step 5: Solve for x
    x = 292,512,630,839.28/552,208.40
  6. Step 6: Final answer
    x = 529,714.20

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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.