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Finding the Fourth Proportional to 389,024.35, 536,649.54 and 316,508.26

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Solution

The fourth proportional to 389,024.35, 536,649.54 and 316,508.26 is: 436,615.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,024.35 : 536,649.54 = 316,508.26 : x
  2. Step 2: Convert to fraction form
    389,024.35/536,649.54 = 316,508.26/x
  3. Step 3: Cross multiply
    389,024.35x = 536,649.54 × 316,508.26
  4. Step 4: Simplify right side
    389,024.35x = 169,854,007,869.41
  5. Step 5: Solve for x
    x = 169,854,007,869.41/389,024.35
  6. Step 6: Final answer
    x = 436,615.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.