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Finding the Fourth Proportional to 528,464.72, 729,233.16 and 313,567.76

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Solution

The fourth proportional to 528,464.72, 729,233.16 and 313,567.76 is: 432,694.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,464.72 : 729,233.16 = 313,567.76 : x
  2. Step 2: Convert to fraction form
    528,464.72/729,233.16 = 313,567.76/x
  3. Step 3: Cross multiply
    528,464.72x = 729,233.16 × 313,567.76
  4. Step 4: Simplify right side
    528,464.72x = 228,664,008,498.92
  5. Step 5: Solve for x
    x = 228,664,008,498.92/528,464.72
  6. Step 6: Final answer
    x = 432,694.94

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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.