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Finding the Fourth Proportional to 530,695.73, 732,338.10 and 288,977.72

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Solution

The fourth proportional to 530,695.73, 732,338.10 and 288,977.72 is: 398,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,695.73 : 732,338.10 = 288,977.72 : x
  2. Step 2: Convert to fraction form
    530,695.73/732,338.10 = 288,977.72/x
  3. Step 3: Cross multiply
    530,695.73x = 732,338.10 × 288,977.72
  4. Step 4: Simplify right side
    530,695.73x = 211,629,390,745.44
  5. Step 5: Solve for x
    x = 211,629,390,745.44/530,695.73
  6. Step 6: Final answer
    x = 398,777.26

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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.