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Finding the Fourth Proportional to 540,072.02, 745,297.05 and 298,354.58

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Solution

The fourth proportional to 540,072.02, 745,297.05 and 298,354.58 is: 411,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,072.02 : 745,297.05 = 298,354.58 : x
  2. Step 2: Convert to fraction form
    540,072.02/745,297.05 = 298,354.58/x
  3. Step 3: Cross multiply
    540,072.02x = 745,297.05 × 298,354.58
  4. Step 4: Simplify right side
    540,072.02x = 222,362,788,327.99
  5. Step 5: Solve for x
    x = 222,362,788,327.99/540,072.02
  6. Step 6: Final answer
    x = 411,728.03

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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.