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Finding the Fourth Proportional to 514,943.30, 771,248.55 and 304,991.30

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Solution

The fourth proportional to 514,943.30, 771,248.55 and 304,991.30 is: 456,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,943.30 : 771,248.55 = 304,991.30 : x
  2. Step 2: Convert to fraction form
    514,943.30/771,248.55 = 304,991.30/x
  3. Step 3: Cross multiply
    514,943.30x = 771,248.55 × 304,991.30
  4. Step 4: Simplify right side
    514,943.30x = 235,224,097,887.62
  5. Step 5: Solve for x
    x = 235,224,097,887.62/514,943.30
  6. Step 6: Final answer
    x = 456,796.11

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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.