Home / 517,849.12-777,075.60-218,311.36

Finding the Fourth Proportional to 517,849.12, 777,075.60 and 218,311.36

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Solution

The fourth proportional to 517,849.12, 777,075.60 and 218,311.36 is: 327,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,849.12 : 777,075.60 = 218,311.36 : x
  2. Step 2: Convert to fraction form
    517,849.12/777,075.60 = 218,311.36/x
  3. Step 3: Cross multiply
    517,849.12x = 777,075.60 × 218,311.36
  4. Step 4: Simplify right side
    517,849.12x = 169,644,431,058.82
  5. Step 5: Solve for x
    x = 169,644,431,058.82/517,849.12
  6. Step 6: Final answer
    x = 327,594.32

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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.