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Finding the Fourth Proportional to 528,006.88, 790,863.34 and 324,984.16

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Solution

The fourth proportional to 528,006.88, 790,863.34 and 324,984.16 is: 486,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,006.88 : 790,863.34 = 324,984.16 : x
  2. Step 2: Convert to fraction form
    528,006.88/790,863.34 = 324,984.16/x
  3. Step 3: Cross multiply
    528,006.88x = 790,863.34 × 324,984.16
  4. Step 4: Simplify right side
    528,006.88x = 257,018,058,224.69
  5. Step 5: Solve for x
    x = 257,018,058,224.69/528,006.88
  6. Step 6: Final answer
    x = 486,770.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.