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Finding the Fourth Proportional to 536,584.05, 740,324.51 and 321,645.69

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Solution

The fourth proportional to 536,584.05, 740,324.51 and 321,645.69 is: 443,774.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,584.05 : 740,324.51 = 321,645.69 : x
  2. Step 2: Convert to fraction form
    536,584.05/740,324.51 = 321,645.69/x
  3. Step 3: Cross multiply
    536,584.05x = 740,324.51 × 321,645.69
  4. Step 4: Simplify right side
    536,584.05x = 238,122,182,533.01
  5. Step 5: Solve for x
    x = 238,122,182,533.01/536,584.05
  6. Step 6: Final answer
    x = 443,774.25

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1.5x scale

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.