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Finding the Fourth Proportional to 530,269.44, 731,492.88 and 315,256.56

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Solution

The fourth proportional to 530,269.44, 731,492.88 and 315,256.56 is: 434,888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,269.44 : 731,492.88 = 315,256.56 : x
  2. Step 2: Convert to fraction form
    530,269.44/731,492.88 = 315,256.56/x
  3. Step 3: Cross multiply
    530,269.44x = 731,492.88 × 315,256.56
  4. Step 4: Simplify right side
    530,269.44x = 230,607,929,013.29
  5. Step 5: Solve for x
    x = 230,607,929,013.29/530,269.44
  6. Step 6: Final answer
    x = 434,888.21

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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.