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Finding the Fourth Proportional to 536,588.31, 740,330.39 and 321,649.95

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Solution

The fourth proportional to 536,588.31, 740,330.39 and 321,649.95 is: 443,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,588.31 : 740,330.39 = 321,649.95 : x
  2. Step 2: Convert to fraction form
    536,588.31/740,330.39 = 321,649.95/x
  3. Step 3: Cross multiply
    536,588.31x = 740,330.39 × 321,649.95
  4. Step 4: Simplify right side
    536,588.31x = 238,127,232,926.98
  5. Step 5: Solve for x
    x = 238,127,232,926.98/536,588.31
  6. Step 6: Final answer
    x = 443,780.14

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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.