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Finding the Fourth Proportional to 556,755.64, 768,073.26 and 375,408.52

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Solution

The fourth proportional to 556,755.64, 768,073.26 and 375,408.52 is: 517,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,755.64 : 768,073.26 = 375,408.52 : x
  2. Step 2: Convert to fraction form
    556,755.64/768,073.26 = 375,408.52/x
  3. Step 3: Cross multiply
    556,755.64x = 768,073.26 × 375,408.52
  4. Step 4: Simplify right side
    556,755.64x = 288,341,245,788.18
  5. Step 5: Solve for x
    x = 288,341,245,788.18/556,755.64
  6. Step 6: Final answer
    x = 517,895.51

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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.