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Finding the Fourth Proportional to 511,891.01, 767,238.73 and 385,124.04

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Solution

The fourth proportional to 511,891.01, 767,238.73 and 385,124.04 is: 577,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,891.01 : 767,238.73 = 385,124.04 : x
  2. Step 2: Convert to fraction form
    511,891.01/767,238.73 = 385,124.04/x
  3. Step 3: Cross multiply
    511,891.01x = 767,238.73 × 385,124.04
  4. Step 4: Simplify right side
    511,891.01x = 295,482,075,411.15
  5. Step 5: Solve for x
    x = 295,482,075,411.15/511,891.01
  6. Step 6: Final answer
    x = 577,236.30

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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.