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Finding the Fourth Proportional to 537,068.36, 805,821.48 and 345,157.76

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Solution

The fourth proportional to 537,068.36, 805,821.48 and 345,157.76 is: 517,877.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,068.36 : 805,821.48 = 345,157.76 : x
  2. Step 2: Convert to fraction form
    537,068.36/805,821.48 = 345,157.76/x
  3. Step 3: Cross multiply
    537,068.36x = 805,821.48 × 345,157.76
  4. Step 4: Simplify right side
    537,068.36x = 278,135,536,996.69
  5. Step 5: Solve for x
    x = 278,135,536,996.69/537,068.36
  6. Step 6: Final answer
    x = 517,877.35

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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.