Home / 403,929.37-605,872.05-123,424.75

Finding the Fourth Proportional to 403,929.37, 605,872.05 and 123,424.75

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Solution

The fourth proportional to 403,929.37, 605,872.05 and 123,424.75 is: 185,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,929.37 : 605,872.05 = 123,424.75 : x
  2. Step 2: Convert to fraction form
    403,929.37/605,872.05 = 123,424.75/x
  3. Step 3: Cross multiply
    403,929.37x = 605,872.05 × 123,424.75
  4. Step 4: Simplify right side
    403,929.37x = 74,779,606,303.24
  5. Step 5: Solve for x
    x = 74,779,606,303.24/403,929.37
  6. Step 6: Final answer
    x = 185,130.40

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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.