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Finding the Fourth Proportional to 536,495.90, 740,428.71 and 321,754.10

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Solution

The fourth proportional to 536,495.90, 740,428.71 and 321,754.10 is: 444,059.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,495.90 : 740,428.71 = 321,754.10 : x
  2. Step 2: Convert to fraction form
    536,495.90/740,428.71 = 321,754.10/x
  3. Step 3: Cross multiply
    536,495.90x = 740,428.71 × 321,754.10
  4. Step 4: Simplify right side
    536,495.90x = 238,235,973,200.21
  5. Step 5: Solve for x
    x = 238,235,973,200.21/536,495.90
  6. Step 6: Final answer
    x = 444,059.26

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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.