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Finding the Fourth Proportional to 528,496.96, 729,223.68 and 313,827.52

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Solution

The fourth proportional to 528,496.96, 729,223.68 and 313,827.52 is: 433,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,496.96 : 729,223.68 = 313,827.52 : x
  2. Step 2: Convert to fraction form
    528,496.96/729,223.68 = 313,827.52/x
  3. Step 3: Cross multiply
    528,496.96x = 729,223.68 × 313,827.52
  4. Step 4: Simplify right side
    528,496.96x = 228,850,459,019.67
  5. Step 5: Solve for x
    x = 228,850,459,019.67/528,496.96
  6. Step 6: Final answer
    x = 433,021.33

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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.