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Finding the Fourth Proportional to 538,682.90, 808,899.15 and 361,973.30

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Solution

The fourth proportional to 538,682.90, 808,899.15 and 361,973.30 is: 543,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,682.90 : 808,899.15 = 361,973.30 : x
  2. Step 2: Convert to fraction form
    538,682.90/808,899.15 = 361,973.30/x
  3. Step 3: Cross multiply
    538,682.90x = 808,899.15 × 361,973.30
  4. Step 4: Simplify right side
    538,682.90x = 292,799,894,692.70
  5. Step 5: Solve for x
    x = 292,799,894,692.70/538,682.90
  6. Step 6: Final answer
    x = 543,547.78

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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.